CCTVs (closed-circuit television) are video magnifiers developed as assistive technology for individuals with visual impairments. These devices are designed to enlarge print and images, providing enhanced ease of use for those with limited vision. By utilizing a larger screen, CCTVs offer a broader field of view and enhanced functionality, making everyday tasks more accessible for the visually impaired.

Key Benefits of CCTVs:

• Magnification: One of the primary functions of CCTVs is to magnify text and images. This feature allows visually impaired users to enlarge handwriting, making it easier to read and write.
• Enhanced Reading: CCTVs significantly improve reading capabilities. Users can increase reading speed and duration, thanks to the ability to enlarge and adjust text to their comfort level.

CCTVs are a technology that has been around for a long time.  There is an entire video magnifier category ranging from the familiar desktop behemoth to the small pocket size models with several other options in between. 

No matter what the size, video magnifiers are a camera, a screen to view what the camera ‘sees,’ and a light source for the field that the camera views. 

I have covered the  smaller, handheld  video magnifiers in another article: What are Portable Hand-Held Video Magnifiers?

Head-borne ‘eyeglasses’ type of video magnifiers were covered in a separate article: Comparison of 14 Electronic Glasses to be used as Assistive Technology for Low Vision

What are the Types of CCTVs?

The general categories of CCTV-type video magnifiers to be discussed are:

1. Desktop CCTV,

2. Portable CCTV,

3. Computer/Laptop Compatibles CCTV; and

4. ‘Mouse camera’ CCTVs.

Desktop CCTV

These are the best options for long-term reading.  Most desktop models have a movable table called an XY table, which is mounted under the camera and monitor. 

This XY table glides side to side (X direction) and forward and backward (Y direction).  The user can sit back in the chair, adjust the magnification, and read by moving the text back and forth under the camera, and by virtue of the monitor, enjoy a large field of view.  The table can also be locked in position and used for other activities such as writing and hobbies. 

Similar to the personal computer, this model requires a dedicated spot in the home or office.  This is because they generally weigh in the 30 to 40 lb. range.

Features to evaluate when looking for a desktop CCTV are:

1. Camera.  I noticed most of them claim HD.  There are two types: Full HD and (Standard) HD.  HD resolution for ‘Full HD’ is shortened to 1080p.  Standard HD is 720p.  This refers to the number of pixels.  Full HD at 1080p has more pixels and higher resolution.

2. Type of Monitor. The larger the screen, the greater the field of view and the greater for practical magnification. Being able to see more words at a time can increase your reading speed.   For example, a 22-inch monitor will give a greater field of view enabling you to see more words with a higher magnification rating than a 14-inch monitor.

3. Flexibility of the monitor or camera mount.  Those with physical limitations will benefit from a monitor that can be angled and adjusted up or down. 

Some monitors are fixed in position.  If not adjustable, you will need to find the right desk height and chair height to get the screen in a comfortable position for long-term viewing.

4. Magnification levels are anywhere between 2x to the highest available is 77X.  Higher magnification levels will be found on the larger 24 inch screens.

5. Manual focus, autofocus, or both.  Autofocus is nice, but being able to turn off autofocus is an advantage when writing or doing hobbies or crafts on the XY table. 

6. Contrast modes aka reverse mode or reverse polarization. A feature used by those with glare or light sensitivity.

7. Color modes.   Most will have natural or true color.  This is good for viewing photos or any work where color is important.  Most have the option of artificial colors, like yellow and black or blue and yellow, and likewise have reverse mode. (e.g. yellow letters on black background, or black letters on yellow background).

8. Brightness control is important for those with glare and light sensitivity.

Premium Features of  Desktop CCTVs:

1. Line Markers and Window Masking.  These are features used to help the reader follow lines of text.  The line marker is a line on the monitor window, centered to help guide your movement of the XY table beneath.   Window masking is the darkening of the reading area above and below the line of text  to ‘highlight’ the line of text.

Masking and Line marker:

2. Text-to-Speech Capability. This is the capability of the CCTV to translate the printed word on the screen to spoken text.  

* To learn about OCR/TTS technology for low vision, see my other article: Electronic Technology: OCR, TTS, and STT

3. Computer Compatibility. This is the ability to attach to a computer or tablet.  The monitor can display what is on the computer screen.  Similar to a scanner, documents and images can be uploaded from the CCTV to a computer.

4. Wireless Bluetooth Hand-held Device.  Allows the user to control the CCTV operation with a remote controller. This will be helpful for those with physical limitations.

Here are a few examples of Desktop CCTVs: (not a complete List.)

How much do Desktop CCTVs cost?

Prices start at about $2,100. USD. Premium CCTVs with lots of bells and whistles will cost about $4,500.USD. Those in the $2000. range will have most of the desirable features:  HD camera, LCD monitor, color and contrast modes, and lots of magnification. 

Many manufacturers will have different versions of a model.  They will vary in some of the features.  For instance, a 24- inch screen will be a couple of hundred dollars more expensive than a 22 inch screen. Each model will say ‘HD’ but one is ‘Full HD” implying higher resolution and maybe a little more expensive.

Those models with OCR/TTS technology will cost $800. to $1000. USD more than other models that do not have text-to-speech.

Portable CCTV

This is the portable CCTV for school or work.  There is no XY table, therefore it does not have the ease of reading that the desktop does.  Portable CCTVs are a  camera, mounted either to a monitor or on a stand.  The monitor is a flat- screen LCD-type.  There are ‘portable CCTVs’ that are sold as just the camera and control unit, which can then be attached to your own  monitor or television.

Portables have the same standard features as the desktop: magnification adjustment, contrast/brightness control, reverse polarization, and additional screen color options.

Most (but not all) portable units offer a flexible camera mount.   Because of this, the camera can be rotated to point at a distant object for viewing on the monitor.  This is a great option for students in the classroom or meeting attendees, to bring the distant presentation board closer and larger. 

Another use for the flexible camera is for self-viewing for grooming purposes.  Look for the ‘mirror’ function (or 3-in-1) to utilize the unit for self-viewing.  As much fun as it may be to try to get your foot on the XY table of your desktop CCTV to cut your toenails, it is not the easiest way. 

Similar to the desktop CCTV, you should evaluate the magnification, color options, reverse modes, and contrast/brightness controls.  Keep in mind, the larger the television  or monitor, the greater and larger the field of view for increased magnification capability.

A few other things to evaluate when looking at the portable CCTV are:

1. Monitors.  These are included with most units, but not all.  Evaluate the size of the monitor. Monitors of portable CCTVs tend to be smaller, in the 12 to 17 inch range. 

2. Camera resolution is HD (720p), Full HD (1080p), or not mentioned at all, meaning it is neither.

3. Weight.  They generally weigh 5 lbs to 18 lbs (with the monitor).  Units without a monitor will be about 1 to 3 lbs.

4. Manual focus, auto-focus, or both.

5. Power Sources. Does it have the capability to run on rechargeable batteries if no plug-in outlet is available?  How long is the battery life?  A review of a few systems indicated an average of 4 hours battery life with continuous use.

6. Type of Camera Mount.  Types of camera mounts are: suction mounts, cameras attached to a flat panel base, and those mounted to the monitor.  Check to see if the camera controls are on the camera mount or separate.  Evaluate if  the controls are conveniently located and well-demarcated by either color or tactile means. 

7. Check the Flexibility of the Camera Mount for near, distance, and self-viewing.  Not all portable units have the flexible camera feature.  Those units that do not have a flexible head mount are only for reading.

8. Ease of setting up, storage, and portability.

9. A carrying case is included with some models and for other models, it is an optional purchase.

Premium features to consider:

1. Computer Connectivity and Compatibility.  Capability to connect to a laptop computer, with additional hardware.  This turns it into a laptop-compatible video magnifier (covered in the next section).

2. iPad or Android Tablet Connectivity.  Tablet compatibility makes it super portable by either a cable or wireless connection.

3. Split-screen option.  When distance viewing with the camera, what is seen on the screen can be split between the distant camera view and the near paper or book set beneath the unit. This is desirable for students who need to see the board and write or follow along with notes.

4. Locator function. If you have ever used high magnification when reading, you know it is easy to get ‘lost’ as to where you are on the page.   The locator is a box or cross lines that appear at the center of the screen.  Place this marker over the area to be read. When the zoom is activated the unit zoom magnifies the indicated area.

5. Capability for Optical Character Recognition (OCR) Scan and Text to speech (TTS).

6. Headphone jack. If you are planning to use this system at school or work utilizing the TTS, attaching the unit to headphones ensures privacy.

7. Touch screen control.  Like a mainstream tablet, this is the ability to control the magnifier functions by on-screen menu and hand gestures.

8.. Line Markers and Window Masking (window shading).

9. Accessory options like an XY table, carrying case, or an additional screen for purchase.

Here are a few examples of Portable CCTVs:

How much do portable CCTVs cost?

A complete unit with a camera and monitor will cost about $2,400. to $3,700. USD.  The price differences are relative to the options available.  A larger screen will be $300. to $400. USD more expensive than the model with the smaller screen.

A camera unit alone, without a monitor, costs between $2,000. to $2,700. USD.  Still expensive because this single unit has all the functionality of a CCTV with the option of   monitor or computer connectivity for greater functionality.  These units are discussed in more detail in the next section on Computer Compatible Video Magnifiers.

Computer/Laptop Compatible Video Magnifier

When you purchase this technology, you are purchasing the camera, control unit, and the accompanying software to load on to your laptop computer.  This unit will have contrast/ brightness control, the flexibility for near, distance, and self-viewing, and magnification adjustment (now called zoom).  Keep in mind, the larger the laptop or tablet screen, the greater the field of view and capability for magnification.

Some units will have both computer and monitor/television connectivity.  Attachment to a computer requires a USB port.  Attachment to a television/monitor requires an HDMI port.

Features to evaluate when buying a laptop-compatible video magnifier are:

1.  Manufacturer’s Specifications for Computer Compatibility.  Most all cameras require Windows XP or later or Mac OS X 10.8 or later, or Chrome.  Check manufacturers specifications for the type of processing unit and the amount of available memory (RAM) needed to run the camera and software.  Also, some require more than one USB port.  Understand that the better the laptop, the better functioning the system will be.

2. Source of Power.  The camera can run on either a plug-in wall adaptor, rechargeable battery, or the power of your laptop.  If it is a battery, what is the battery life?  Four hours seems average.  Running on the battery may get you through a few classes or lectures, but probably not through an entire day.  Either a plug-in wall adaptor or spare batteries will keep the system running.  If the camera runs off the laptop, it will run the charge on your computer at a faster rate.

3. HD, Full HD, or not.

4. Location of Controls.  Evaluate where the controls for the system are located, and how much is controlled on the laptop keyboard.

5. Portable or not portable.  The advantage of connecting to a laptop is portability.  A unit that does not fold up is not portable and is best used in the home or office.

6. Weight.  The weight should be 5 lbs or less.  Remember, you have to transport it along with your laptop.  A carrying case should be included.  Once you get there, evaluate how easy it will be to set up.

7. Flexibility.  Computer-compatible camera units should have the flexibility for distance, near, and self-viewing.  The exceptions are those that are designed specifically for document reading.  Check to see if the camera can be used on both sides of the computer.  This may be an important consideration for those who are left-handed.

8. Near Viewing Lens.  Those with flexible cameras, look at where the lens for near viewing is located and how it is positioned when needed. A few have a dual lens system viewing both distance and near.

9. Magnification or scanning and reading (OCR/TTS), or both.  For example, the unit may be designed for magnification, but OCR/TTS software is available for download.  A unit that scans and reads will work with magnification software on your computer (ZoomText, SuperNova, iZoom).

 A few premium features to consider:

1. Screen Grabber Function.  An image (say a slide presented on the board at a distance or a page in a book), can be ‘freeze-framed’ and then can be stored on the computer for future review.

2. Locator Finder Function.  This feature can be used to zoom ‘out’, to locate the area of interest and then zoom ‘in’ to magnify the details of that location.  A large area is tedious to scan when looking for a particular part.

3. Split Screen Capability.  This feature puts the material you are working with on your computer with the image viewed by the camera (distant or near).  Keep in mind that your computer magnification software must be compatible with this feature.

4. Capability for Optical Character Recognition (OCR) Scan and Text to Speech (TTS).  If the magnifying unit is not already loaded with OCR/TTS software, make sure it is compatible with OCR/TTS software on your computer (JAWS, Fusion, OpenBook).  The other option is software available for download from the manufacturer.

5. Line Markers and Window Masking.  This feature helps with following or isolating the text to help with reading.

Here are a few examples of computer compatible CCTVs:

How much do computer compatible CCTV camera units cost?

The pricier ones  are $2,700. to $4,000. USD.  These units have HD cameras, pre-loaded with software, WiFi, and lots of other features to make text more accessible for the visually impaired.

There are camera units designed just for viewing documents.  These units are designed to work with software on the laptop for scanning and reading (JAWS, Fusion, Dolphin, OpenBook,). These units are $349. to $375. USD.  Another type, not originally designed as a low vision CCTV, offers magnification software as an optional download.   

Mouse Camera Video Magnifier

This is generally not a portable type hand-held magnifier.  It  looks like a large computer-type mouse.  The unit has a camera and a light source and is attached to a monitor or television.  So, like the desktop CCTV, it will need a dedicated spot in the home or office.  (There is always an exception. I did find a portable mouse-camera with a small  monitor system).

The camera mouse is rolled over the reading material and is magnified onto the screen.  While it is good for reading the newspaper, mail, magazines, and recipes, it is not used for writing.

Some of the features to look for are:

1. Magnification.  The capability for magnification is dependent on the size of the monitor screen.  Some of these units are fixed focus, meaning it has a set magnification size and can be adjusted only by changing the size of the monitor screen. 

2. Battery Type.  Most have a rechargeable battery pack.

3. Color Options.  Some models are only grayscale.  Grayscale is the familiar old black and white televisions, where colors appear as shades of grey.  Others offer true color and reverse polarization options.

4. Very important:  Evaluate the type of monitor/television connection.  If the mouse camera requires a video input connection (uses an RCA connection), an adaptor for an HDMI connector for a TV may be needed. Check the back of the television or monitor.

Here are a few examples of mouse camera CCTVs:

How much do mouse-camera CCTV magnifiers cost?

There is a wide range from $99. to $499. USD.  The more expensive units are to be used with a computer.

Considering the price of other video magnification systems, the combination of this unit with a monitor makes for a less expensive CCTV unit for reading, however lacking in options and flexibility. 

In the End: How to choose a CCTV as an accessibility tool for the visually impaired:

The desktop CCTV is the best option for long-term reading.  The XY table of the desktop is the most practical solution for reading books.  It also allows for working underneath for hobbies and other detail work where magnification is useful.

The downside is its large size requires a dedicated place in the home or office.  In my office, where space is limited, I purchased a ‘vintage’ typewriter table, which has small wheels on the bottom, to move into position when needed.

The portable CCTV magnifiers are marketed to students who need to see a distant board and write under the magnifier.  This option is also useful for those whose work requires them to move around and attend meetings where distant viewing is needed.  There are many choices and different options available.

The downside is that they can be more tedious to use for long-term reading.  Without an xY table, the user needs to slide the reading material back and forth.  One manufacturer almost got it right:  the unit has a joystick that moves the camera image of the page across the screen.  Unfortunately, it does not scan completely across the page.

The computer compatible camera CCTV is the work-horse option for college students and workers.  The combination of a top-of-the-line laptop computer, your magnifying software, and the portable camera system, turns out to be the most expensive of the video magnifier options.  But it could be the most valuable system for students and the working visually impaired.

The mouse camera type of CCTV is marketed to seniors.  It is designed to be used with commonly found technology in the home and it is very simple in its set-up and functionality.  It is also economical to purchase.  

Article on Hand-held video magnifiers: What are portable hand-held video magnifiers?

Article on electronic glasses: Comparison of 14 Electronic Glasses for use as Assistive Technology for Low Vision

Video magnifiers are electronic devices designed to give the visually impaired enhanced clarity and readability by enlarging images and print to increase reading time, reading speed, and decrease visual discomfort.

Many electronic assistive devices have been developed to help the visually impaired: CCTVs, video magnifiers, electronic glasses, and assistive computer technology.

Having access to electronic devices can open up the world.  It is a must for students to keep up with classmates and it can keep adults employed.  There are different categories of aids for different tasks.  There is no one technology option that does it all. 

In this comprehensive guide, we delve into the world of portable hand-held video magnifiers, exploring their features, benefits, and how they can significantly improve the quality of life for those with visual challenges.

What is a portable video magnifier?

Portable video magnifiers are compact, convenient, and user-friendly assistive devices designed to enhance visual clarity for individuals with low vision or visual impairments.

These hand-held magnifiers serve as modern alternatives to the bulky and cumbersome optical magnifiers of the past. Unlike their traditional counterparts, which often come with limitations such as a smaller area of usable magnification and potential optical aberrations, portable video magnifiers utilize advanced camera technology and high-resolution displays to offer crisp, clear magnified images.

What does a video magnifier do?

The screens of these hand-held video magnifiers have a larger area of usable magnification that can be manipulated for :

Magnification

contrast,

color, and

brightness.

What are the types of portable video magnifiers?

I have identified 3 sizes:

Mini (small, 1.8 to 4.3  inch screens)

Standard (4 – 6 inch screens)

Large (7 – 12  inch screens) The screen measurements are on the diagonal.

1.  Mini: is designed for pocket portability.  The screens are small, in the range of 1.8 inches to 3.5 inches.  They can be the size of a credit card or cell phone and weigh about 4 oz.  This video magnifier will be used for reading menus, checking price tags, and reading labels. 

2.  Standard Hand-Held Video Magnifier.   The screen size is slightly larger at 5 – 7 inches. These are less than one pound.  A lightweight model is about 7oz.

These mid-sized video magnifiers are still portable but will fit better in a handbag, backpack, or briefcase.  This type is a little bulkier because it may have a retractable handle by which it is used like a hand-held optical magnifier or ‘legs’ that it stands on, like an optical stand magnifier to help it glide across the page.  This is a better option for the unsteady hand.  This is the largest category of hand-held video magnifiers.

3.  Large Hand-Held Video Magnifier.  Although still portable, these larger units are bulkier and are best for what I describe as a ‘kitchen table’ magnifier.  The screen size will be about 8 to 12 inches.  Generally, they weigh over 1 pound and may weigh as much as 2.5 lb.  (1 pound=  .45 kg)

Large screen video magnifiers are handy for longer-term reading activities like reading the mail, reading recipes, and the newspaper.  These are also useful for reading and writing tasks, where a CCTV would be nice but not practical, such as filling out forms in a doctor’s office or a trip to the library. 

They offer additional features that the smaller hand-held video magnifiers do not have.  The larger screen gives a larger field of view and greater capability for practical magnification, but is awkward to hold.  These models will come with a stand or some type of support system designed to tilt and will have space beneath for writing.

What features should you consider?

Magnification,

screen resolution,

controls,

viewing options,

type of battery and battery life with continuous use, and

type of stand to mount magnifier for extended use.

Magnification. The magnification rating is a wide range from 1X to 48X.  The magnification will be offered in a series of steps, say 3X – 5X – 7X – 10X.  This would indicate four magnification levels.  Some devices will offer the magnification as continuous zoom, which means there is an option for all magnification levels in between.

Keep in mind that a small screen limits the field of view and therefore the practical level of magnification.  For example, it is not practical to read two letters at a time at 18X mag. on a mini screen.  (Larger screen = greater practical magnification at higher magnification levels.)  Seeing a whole word or image is better than just a piece of a word or image.

Screen Resolution:  When looking at the specifications you will see numbers like 1920 x 1080.  This means the number of pixels horizontally x vertically.  Simplified, this means the more pixels the more vivid the details and higher resolution.  HD resolution for ‘Full HD’ is shortened to 1080p.  Standard HD is 720p.

The best screens are LCD TFT (Liquid Crystal Display Thin Film Transistor.)  The TFT is an additional layer to the LCD to increase the speed of pixel response, that results in greater image quality and contrast.  The TFT is a premium feature used to decrease motion blur (ghosting, ‘shadow-blur’, or shadow-trail.)

Also consider that a high-resolution screen will use up more battery energy and may shorten usage time.

Controls.  Evaluate where the controls are for both visibility and ease-of-use.  The controls are simple on/off, magnification, and freeze frame.  The buttons should be visible by size, color, and/or tactile cues.

The unit may have an on-screen menu.  These are usually symbols and should be large enough to see. The high-tech pricier units may have a touch screen capability for on-screen menu navigation.

Audible cues can be helpful.  These are cues like tone sounds for on or off and clicks or beeps for increasing or decreasing magnification.

Viewing Options.  Most have true color, black and white with grayscale options.  Those that offer five or more mode options are offering other color choices with inverse modes.  The most common color options are yellow and black and yellow and blue.

 

Type of Battery and Battery Life with Continuous Use.  Magnifiers should be good for 2 to 3 hours on a fully-charged battery.  Four hours is about the maximum.  Replacing regular batteries (for example: AAA batteries) will be an ongoing expense.  Most use rechargeable batteries and should have a plug-in wall adaptor cord included to recharge the batteries by directly attaching to the magnifier, as opposed to pulling the batteries out to recharge.

Stand to Mount Magnifier for Extended Use.  The advantage of the mini models is their small portable size and not so much for long-term use.  The minis may have little ‘flip-up feet’ to support them and make it more stable for sliding across a page.  This is important for those with unsteady hands.

The standard size is designed to rest on the page.  A few will have an extendable handle to use as a hand-held magnifier.

The larger video magnifiers will have a stand.  Evaluate the flexibility of the screen tilt and the space available for writing beneath the magnifier

What other features are available on video magnifiers?

When evaluating video magnifiers for purchase, there are a few other features to consider.  The ones mentioned above are the basics.  There is a wide range of options, primarily in the larger sizes.  Consider how it will be used and the level of vision impairment of the user.  Someone with milder vision loss will be able to navigate the more sophisticated, technology-rich units.  An individual with more severe vision loss will need a larger screen with easily accessible controls.

Other features available:

Adjustable Brightness and Contrast Control.  This feature is not absolutely necessary, but it is nice to be able to adjust the screen brightness, especially in a dim restaurant so the magnifier doesn’t turn into a beacon light in the room.  This is a feature not likely to be found in the mini-type.

Ability to Turn Off the Magnifier’s LED Light.  This is helpful when viewing another screen, like a cell phone that has its own source of illumination.

Auto shut off.  This is a good battery-saving feature.  It is set to turn off, on its own, if not moved for a period of time, say five minutes.

External Video Output.  This will allow the video magnifier to be attached via HDMI (port and cable) to a TV monitor to amplify the magnification.

USB Connection. This allows the connection to a computer for downloading images or to a computer monitor for an even greater level of magnification.

Capability to Write Underneath the Magnifier.  Check the distance beneath the magnifier to see if it can be used for check writing or other short-term writing tasks.

Front Facing Camera:  Similar to how a smartphone switches the camera to allow for ‘selfies.’  The benefit to a magnifier user is for magnified self-grooming and make-up application.  This is a feature of the larger screen video magnifiers.

Memory Card or TF card also known as a Micro SD card:  This option is to save images freeze-framed on the magnifier.

Distance Viewing.  If the magnifier has autofocus, it can be held up to magnify and bring closer objects from across the room.  There are those brands that can view even further away.  This is a good option to use on the street for reading street signs in an area that is not familiar to you.

Reading Lines and Masking.  This is a less common feature.  A few models have reading lines and masking to aid in following text.

OCR/TTS:  Optical Character Recognition and Text-to-Speech are available on a select few units.  This is the capability of the magnifier to convert an image of text to the spoken word.  Good choice for those that have difficulty reading even magnified print.

To better understand OCR/TTS, here is a brief article: Electronic Technology: OCR, TTS, and STT

How much do video magnifiers cost?

Here is what you will learn quickly as you evaluate your electronic technology options; the better technologies are expensive.  While there are some inexpensive video magnifiers available, the functionality is not the same as the higher quality units.  You will need to weigh the cost vs. benefit for these pricey aids. 

I looked over hand-held portable video magnifiers available on the internet and  made some generalizations:

Mini 3.5 to 4.3 screen sizes run in price from $69. to $199. USD.  There were a few that were over $300. These pricier units should have higher quality  LCD TFT screens.

Standard size video magnifiers range from  $400. to $800.USD for the better quality screens and options.  There were several 5-inch screen units in the $200. USD price range.  The difference seems to be the quality of the screen.  The more expensive 5-inch screens are HD or FHD.  Watch for the term HD ‘effect’…not the same as HD.

The large screen portable video magnifiers are over $1000. USD.  They all have HD or FHD screens.  The larger video magnifiers have additional options not available on other smaller units like OCR/TTS, touchscreens, on-screen menu navigation, and forward-facing cameras.  The supporting stand may be more flexible which allows for writing beneath the unit.

In the End…

Video magnifiers are a must-have tool for the visually impaired.  While they may not be a workhorse like CCTVs and computer-aided functionality, they are handy and convenient for activities of daily living.

There are many choices available in a wide range of price points.  You should evaluate them based on the quality of the screen imaging and those features that you feel work best for your needs.

I hope this article helps in your decision making process for purchasing a video magnifier.

Interested in high-tech low vision glasses? See Comparison of 14 Electronic Glasses for Use as Assistive Technology for Low Vision OR

Learn about desktop and portable computer compatible magnifiers: What is CCTV for the Visually Impaired?

Description and comparison of 14 head-borne digital devices used by the visually impaired for activities of daily living.

Image: LeVar Burton as Lieutenant Commander Geordi LaForge from Star Trek: The Next Generation Photo source: Robert Wilson

A new generation of those who are visually disabled, do not want to take a backseat to opportunity and mobility because of low vision. There is hope and  an expectation by those within the low vision community that wearable assistive technology will fill in the gap to allow them to perform activities of daily living and give them the freedom that is enjoyed by those who are not visually impaired.

The technology that has advanced in the last decade is wearable, head-borne digital devices or ‘electronic glasses.’  There are two modes:

(1) Vision enhancement and

(2) non-visual assistance. 

Vision enhancement utilizes magnification and is best suited for those with some residual vision.  Those with central vision loss benefit from increased magnification.

Non-visual assistance does not require the user to have usable vision, but provides orientation, navigation, and object identification by auditory cues.  Those with severe vision loss benefit from non-visual assistance.

Field Expansion Smart Glasses

I would like to add a third smaller category called field expansion smart glasses. These glasses are designed specifically for those with significant visual field loss.  Those with retinitis pigmentosa, advanced glaucoma, stroke patients, and those with degenerative retinopathies will benefit from  this technology.  One company  has designed glasses specifically for field expansion and high contrast for these patients.  OxSight out of the UK makes OxSight Crystal. (Discussed below.)  Two other creators have added field expansion and high contrast features to their electronic glasses; Acesight and  IrisVision Inspire.    

Here are a few options to evaluate:

Battery Life: These units run on rechargeable batteries. Most last 2 to 3 hours, some claim 4 hours.  These times depend on how the unit is being used.  A continuous video stream will last about two hours, intermittent use without using special functions, it may last longer. Many offer a cord to attach to an external power source or include additional rechargeable batteries.

Color modes are contrasting modes to enhance the image, especially applicable to reading text.  They are most often color inversion, like white text on black or yellow text on black or inverted black text on yellow, or blue and yellow text combinations.

Controls:  Many of the units are hands-free, self-contained units.  They are controlled either by touch pads on the unit  or by voice commands.  Other methods are using Bluetooth hand-held remotes or are controlled utilizing an app on a smart phone.   

OCR/TTS is an abbreviation for optical character recognition  and text-to-speech.  Computer software recognizes text within an image from the unit’s camera and is then able to translate it into words spoken through the unit’s speakers. Learn more about this technology: Electronic Technology: OCR, TTS, and STT

Smart phone and applications.  There is a plus side to smart phones as a part of the unit because it greatly expands the functionality of the assistive device.  The downside is that they need, in many cases but not all, to have an internet connection.  Consider that it may also involve a data use contract (Most of us have already been down that road with our personal cell phones.)

Television watching:  How important is the ability to watch TV or stream videos?  One way is to watch TV is as a magnified image through the glasses.  The quality of the images is dependent on the camera and screens.  Choose a high-speed camera and high-definition OLED screens. Another option is to have the electronic glasses stream TV or videos onto the screens of the device. This technology is more of a virtual reality, immersive experience.

Can these electronic glasses be worn while driving?

None of the electronic/digital glasses used for low vision enhancement are approved for driving.  Optical aids permitted for driving are the bioptic lens systems. 

I presented a discussion of these devices in an separate article: Low Vision Telescopes for Distance, Intermediate, and Near as Low Vision Aids

Non-Visual Assistance

OR Cam Pro 2 and OR Cam Pro 3

The OrCam is a head-borne device with a camera that uses artificial intelligence to recognize text and convert that text into speech (OCR/TTS).   It is a small, lightweight device of less than an ounce that attaches magnetically to a clip fastened to the temple piece of regular eyeglasses.

OrCam MyEye by OrCam Technologies, Ltd:

• Type of Feedback: Auditory (text-to-speech) more than 20 languages.
• Type of Control: (1) voice commands, (2) taps and swipes on a touchpad, or (3) with the OrCam app.
• Weight:  0.79 oz, ( 22.5 g)
• Battery Life: 2 hours, because it is a small unit there is a trade-off of weight vs battery life.
• Price: MyEye  $4,250. USD, payment plan available.
• Advantage: Small, lightweight, great for mobility.
• Unique features: Responds to voice commands, helps with orientation and mobility, and face, object, color, and currency recognition.  Internet connection not required. The newer Pro 3 offers a stationary reader option for magnifying text.

Note:  OrCam Technologies makes another unit called the Read.  This is not a wearable unit but is hand-held.  Best for those with reading difficulties, such as those with milder forms of vision loss and those with dyslexia.

Envision Glasses

This unit is the Envision software running on the Google Glass system. The Envision AI software expands the use of Google Glass with OCR and ‘computer vision.’ 

The unit is mounted on the right side of a wire frame.  It is controlled by a touchpad on the device using taps and finger swipes. A small screen is mounted over the right eye.  The screen is clear and can be seen through when not in use. 

The visually impaired will benefit from the Envision accessibility software and not so much from the small optical screen that may be difficult to see.

Envision Glasses by Envision

• Type of Control: Touchpad on the side of the unit.
• Weight:  1.76 oz (50 g)
• Field of View:  80 degrees (Google Glass).
• Battery Life: 4 hours.  The unit can be attached to an external power
  source (USB C)for extended use.
• Price: there are 3 models: $1,699.USD, $2,499. USD( €32,279), and $3,499. 
• Advantages:  Reading feed: reads any text presented to it, OCR can scan
  multiple texts, reads in 60 languages, can identify people known to you,
  currency and color identification.  Bluetooth and WiFi wireless
  connection. Some applications require an internet connection.
• Unique Features: Envision Ally allows you to make video calls to family and
  friends for assistance when you need it.   Explorer mode describes a
  scene and identifies objects and finds items in the environment around
  you.  The Google Glass can download apps for greater functionality.

Note:  The Envision AI app is available for download for Apple and Android OS smart phones.  This app has all the functionality of the Envision Google Glass system using the smart phone camera and speakers. It is free to download and use for 14 days.  Then it is billed as a subscription service: $1.99/month, $19.99/year, or $89.99 lifetime.

Cyber Eyez  Smart Glasses

This is similar to the Envision smart glasses.  It is the Cyber Eyez software loaded on to a pair of smart glasses.  This unit is discussed in more detail later in this article as part of the Cyber Eyez Trifecta.

Aira Service

(Note:  I have included Aira here because it was included in my original article about the Aira Horizon Smart Glasses.)

Aira has discontinued use of the smart glasses. It is a  service utilizing a smart phone. It is designed to give real-time audio feedback from a person, called an agent, from a remote location.  The camera on a smart phone is used to interact with the agent through the app.

They have added a new service called Team Viewer.  A remote agent is given access, by your request, to help with desk-top personal computer on-screen navigation.

Aira  Subscription Service by Aira Tech Corp.

• • Type of Feedback: Auditory, as seen by an agent at a remote location.

• • Type of Control: Smart phone app (Apple or Android.) 

• • Price: Subscription service: Pricing is based on minutes/month and country: pricing click here. The app is free.

• • Advantage: Very easy to use and is best for mobility and is useful for the legally blind.  It also uses an AI assistant called Chloe, which responds to voice commands and can read text. New addition is Team Viewer for on-screen computer navigation and assistance.

• • Unique Feature:  Immediate access to assistance from a sighted agent as a subscription service.  GPS-assisted mapping.

Visual Enhancement

Acesight

There are two models: Acesight  and Acesight VR

Acesight: By Zoomax Technology Co.

The producers call it an open design.  The 2 screens are mounted in front of the eyes and a darkly tinted shield is mounted over them.  This shield cuts down on external light interference but still allows for the wearer to use peripheral vision for mobility. The camera is located centrally over the bridge of the nose.  The battery and controller are connected by a wire to the headset.  

There are two versions; Acesight and Acesight S.  The ‘S’ version has fewer features.  They both have:

• • Type of feedback: Visual magnification:  1.2 to 15x, zoom.

• • Type of Control: Hand-held remote wired to headset.

• • Field of View:  45 degrees.

• • Weight: 12.6 oz (360 g).

• • Battery Life: 4.5  hours.

• • Price: Acesight $4,295.00 USD,    Acesight S $2,995. USD.

• • Advantages: Binocular, open design allows for mobility.  Ability to lock the autofocus to create a stable image. Does well with computer screen viewing.

• • Unique features: Outline mode for object identification (sharpens contrast lines),  Freeze frame option freezes an image creating a stable image that can be moved around or zoom-in or out for inspection.  This feature is good for those with nystagmus.

Where the Acesight and Acesight S differ: The Acesight has;

1. More color contrast modes,

2. Narrow mode: zooms out and shrinks the image for those who have lost visual field (ex: RP, glaucoma).

3. Find function: zoom in and out to locate the object of interest.

Acesight VR: by Zoomax Technology Co.

This is similar in appearance to the other VR headsets (Patriot ViewPoint, IrisVision Live,  and Vision Buddy).  It is controlled by a Bluetooth remote controller.  There are adjustable straps around the head and another on top to support the VR unit.

• • Type of Feedback: magnification to 16X.

• • Type of Control: Bluetooth remote controller.

• • Field of View: 65 degrees, Full HD 1080p.

• • Battery Life: 2.5 to 3 hours, it can also be attached to an external power source for extended use.

• • Weight: 1 lb (460 g)

• • Price: $2,495. USD. There is an option to rent: $199./month.

• • Advantages: Wireless control, does not use Wi-Fi.  It has a high-resolution HD screen with  brightness control.

• • Unique Features: Narrow display feature: zooms out and shrinks the image for those who have lost visual field (ex: RP, glaucoma).  High contrast outline mode.  Find feature: zoom in and out to locate the object of interest. Freeze frame option freezes an image creating a stable image that can be moved around or zoom-in or out for inspection.  

Apple Vision Pro

The Apple Vision Pro represents cutting-edge mainstream technology, equipped with a wide array of accessibility options tailored for individuals with vision, hearing, and mobility impairments. Setting up and utilizing the accessibility features on the Vision Pro closely mirrors the process on the iPhone and iPad. However, users may encounter a learning curve when it comes to mastering the finger movements and swipes unique to this innovative device.

Peering through the Vision Pro unit provides a window to your surroundings. Activating the computer screen by touching a button on the unit, known as the ‘digital crown.’ Once activated, the home screen app icons materialize, seemingly floating in your environment. Users have the flexibility to adjust the screen size and navigate using finger taps, head and eye movements, as well as voice commands. For individuals experiencing difficulty with visual navigation, VoiceOver serves as the guiding narrator, aiding in seamless interaction with the screen.

Apple Vision Pro by Apple

• Type of control:  Buttons located on the ‘Digital crown.’ 
• Navigation: finger taps and swipes, eye movement, and voice commands (using Siri).
• Field of View: Variable, controllable zooming in and out. 
• Battery Life:  Powered by an external rechargeable battery 2 to 2.5 hours when fully charged.
• Weight: 21.2 and 22.9 oz,  (600 to 650 g)
• Price:  $3,499.
• Advantages: Utilizes smartphone technology. More functionality for students and workers. May be difficult for those not familiar with newer digital technology. 
• Unique Features:  All the functionality of your iPhone or iPad: Streaming, videos and music, browsing the internet, reading and responding to emails, and communication.  There is a pop up keyboard and the capability to dictate. Can connect to Mac laptop to project screen to Vision Pro.  

 

Cyber Eyez VR and Cyber Eyez VR Trifecta

This unit can still be purchased, but may have been discontinued

This wearable is offered in two formats:

Cyber Eyez VR and Cyber Eyez Trifecta.  The Cyber Eyez is a virtual reality headgear with a Samsung 9S phone as the camera and screen.

The Trifecta goes beyond just the VR headset and phone with the addition of ‘smart glasses’ and the Cyber Eyez software application, ‘app.’

The Trifecta app expands the usability of the Cyber Eyez VR.  The Samsung phone can be removed from the VR headset and used with the smart glasses, which has a camera attached to one temple of the frame.  This camera is attached to the cell phone so the user does not need to walk around with the larger and heavier VR headset.  The camera images appear on the phone.

Cyber Eyez Trifecta  sold by Nimmecd  and Palmer Vision

• • Type of Feedback: Visual magnification  to 20x and auditory online Google  OCR/TTS.

• • Type of Control: Bluetooth remote or voice commands.

• • Battery Life: 2 – 4 hours, charging cable can be attached directly to the unit.

• • Weight: VR headset: 3.5 lb (1.58 lg)  Trifecta smart glasses:1.7 oz (48 g).

• • Cyber Eyez Trifecta: $3,680.57. USD 

• • Advantages: Screen placement flexibility. Trifecta glasses allow for mobility. Color enhancement and contrast control.

• • Unique features: Cyber Eyez app (Trifecta), Google object recognition, color assistant, product bar code identification, and free online training.

eSight 4

The eSight has a camera located centrally over the bridge of the nose.  There are 2 high-resolution screens, one in front of each eye. 

The unit is supported by a halo headband which is adjustable and does not place pressure on the bridge of the nose.  The battery pack is located at the back, near the neckline.

The control touchpad is located on the right side of the headband.  The unit can also be controlled by a Bluetooth remote or iOS or Android app on the smart phone.

eSight 4 by eSight

• • Type of Feedback:  Visual magnification (up to 24x zoom) and auditory  feedback for menu navigation.

• • Type of Control: Touchpad on the right side of unit, a Bluetooth remote, or the eSight app on a smart phone (Apple or Android.)

• • Weight: 1 lb (454 g)

• • Battery Life: 3 hours of continuous use. Includes 2 rechargeable batteries.

• • Price:  $6,950. USD. There is an option to rent for $249./month. 

• • Advantages: High definition, high-speed camera, tilts up to allow for peripheral vision and mobility.  Headlamp for dim situations.  Takes photos and videos (256 GB storage).  Can control brightness, contrast, and has color mode options.

• • Unique features: Shared accounts so others can see what is on the display and help customize your experience.  HDMI connectivity  for watching television and other streaming services. Telehealth training program (5 hours) for interactive training at home and automatic software updates.

Iris Vision Live

Iris Vision is a simple head-mounted magnifier.  It utilizes an Android Samsung S7 phone, mounted into the Samsung Gear VR goggles.  It operates using the camera of the phone and  just the one large screen of the Samsung S7 phone.

IrisVision Live by IrisVision Global Inc.:

• • Type of Feedback: Magnification ( up to 12X) and auditory OCR/TTS.
  • Field of View:  70 degrees

• • Battery Life: 3 hours.

• • Price: $3,2999. USD, call for financing options.

• • Advantages: It has the capability to capture images and display photo galleries. The user can  stream videos.  Cellular and Wi-Fi connectivity for remote support.

• • Unique features: Responds to voice commands using Google Assistant.  Wireless charging.

IrisVision Inspire  (Newest version)

The new IrisVision Inspire wearable does away with the smart phone screen. The design looks more like sunglasses rather than the heavier gaming-style  VR headset.  There are 2 screens, one in front of each eye, which can be turned off independent of each other.  It still has cellular and Wi-fi connectivity. 

• • Type of Feedback:  Magnification up to 10x.

• • Type of Control: Buttons under the lenses, remote controller, or responds to voice commands.  Attached to a smart phone for image processing.

• • Weight: .38 lb (172 grams)

• • Field of View:  77 degrees.

• • Battery life: 3 hours, wireless charging.

• • Price: $3,995. USD, includes a fully functioning Samsung Galaxy S21 and a 24 month cellular data contract. 

• • Advantages: High contrast reading modes, You Tube video streaming, ability to make phone calls, and voice command capable.  There is a data usage plan for the phone, Amazon Alexa, and video streaming on-the-go, on a per-month basis.

• • Unique Features: Free software updates and free remote support. RP mode allows those with peripheral vision loss to shrink down the image. Wireless charging dock. 

NuEyes Pro 3

•  

NuEyes Pro are smart glasses that look like a set of sunglasses.  They are designed for both visual and auditory feedback.  A camera unit is mounted centrally on the bridge of the frame.  It is a wireless and self-contained unit with a battery and processor.  The  two OLED screens display a live stream of what the camera is viewing.  

NUEyes Pro e3+ by NUEyes:

• • Type of Feedback: Visual magnification(1x to 18x zoom) (AR technology) and auditory (OCR).

• • Type of Control: Voice commands or wireless smart phone app as a remote.

• • Weight: 4.6 oz ( 130 g)

• • Field of View: 110 degrees, can insert prescription lenses.

• • Battery Life: 1.5 to 2 hours, it does come with a battery pack for extended use.

• • Price: $2,895. USD, 

• • Advantages: Utilizes OCR/TTS for reading.  Can take pictures and videos. Dual microphones for echo cancellation, Embedded speakers. Ultra HD.

• • Unique features: 5G enabled AR smart glasses. Full functions of an Android tablet with downloadable Android apps.  Ability to stream any subscription based mobile streaming service. Has a head-lamp to increase light in dim situations. Ability to insert prescription eyewear.

OxSight Onyx

Currently out of production, but still available

OxSight is a team of researchers and clinicians out of the University of Oxford, Oxford, UK. They have designed an easy to use, lighter weight electronic eyewear for those with central vision loss.  It looks like a large pair of sunglasses.  The camera is centrally located over the bridge of the nose. It utilizes two OLED screens.

OXSight sold by Vision Aid Technologies

• • Type of Feedback: Magnification to 8x zooms in and out.

• • Type of Control:  Large tactile buttons on top of the unit.

• • Field of View: 70 degrees

• • Battery Life: 2 – 3 hours, it does have a sleep mode when not in use.

• • Weight: 7.4 oz, (210 g)

• • Price: £895.00 

• • Advantages:  Low light mode, TV mode, freeze frame mode, object recognition, brightness control and autofocus.

• • Unique Features:  Smaller and lighter in weight than other electronic headsets.  Not a lot of bells and whistles which makes it simpler to use “right out of the box.”

OxSight Crystal

This product is also out of production, but can still be purchased

The OxSight Crystal headset looks like a pair of space-age glasses.  Designed for those with significant visual field loss.  It is useful for visual field expansion and vision enhancement. The camera is located on the right side of the unit.  It has two HD displays with a sun shield that is removable. The unit is wired to a remote to control  its numerous enhancement modes. This unit is not designed for walking around, as it impedes depth perception.

OXSight Crystal sold by Vision Aid Technologies

• • Type of feedback:  Visual field expansion and vision enhancement.   Capability to zoom in and out.

• • Type of control:  Hand-held remote wired to headset on the left side. .

• • Field of view:  Can be expanded to 68 degrees.

• • Battery Life: 2 -3 hours.

• • Weight:  2.9 oz, 83 g

• • Price: £1,499.00

• • Advantages: Can be worn with prescription eyeglasses, removable tinted shield for those with light sensitivity.

• • Unique Features:  Besides visual filed expansion, it has 7 vision enhancement modes: full-color video, black and white, color edges, high contrast, super color enhancement, super color edges and text mode.

Patriot® ViewPoint

This electronic magnifier uses the Android-based Samsung S10 phone mounted into a Samsung Gear VR headset.  The screen is enclosed to prevent stray light from interfering with the clarity and quality of the screen.  

Magnification, brightness, and color modes are controlled by a touchpad on the right side.

Patriot ViewPoint by Patriot ViewPoint Industries, LLC:

• • Type of Feedback: Visual magnification, 1x – 22x and auditory OCR/TTS for reading.

• • Type of Control:  Touchpad on right side and a few controls on the front of the headset or voice commands.

• • Weight: VR head Gear weight about a pound (454 g.)

• • Field of View: Wide, immersive.

• • Battery Life:  2 hours continuous use. An external power source can be attached for extended use.

• • Price: $2,995. USD.

• • Advantages: Wireless.  Large field of view.  Capability to zoom out for distance and in for near reading distance.  OCR for text reading. Can be worn over most prescription glasses.

• • Unique Features:  11 contrast modes, automatic shut-off after no movement for 15 minutes and a headphone jack for headphones or external speaker.

Vision Buddy 

This is a VR headset originally designed for TV watching and reading.  It comes with a transmitter that connects to a streaming media box.  The transmitter sends the signal to the headset.  No wire connection between the headset and transmitter.  The video appears on the headset screen, as opposed to a magnified view of the TV across the room.  This gives a better quality immersive TV watching experience. Internet is not needed to operate.

The headset unit has speakers.  It also has a plug to attach external speakers or headphones. 

Vision Buddy by Get Vision Buddy

• • Type of Feedback:  Magnification to 10X zoom, text reading (OCR/TTS.)

• • Type of control: Buttons on the headset, no remote, no wires.

• • Field of View: Very wide and allows the user to zoom in and out.

• • Battery life:  2.5 hours or 5 -6 with an external battery.

• • Weight:  1 lb 1 oz, (481 g)

• • Price: $2,995 USD.

• • Advantages: 3 Modes: (1) Television watching, (2) digital magnification, and (3) optical character recognition and text-to-speech (OCF/TTS)

• • Unique features:  Immersive video experience with video streaming on the headset screen.  Any cable box, Roku, Apple TV, etc., that accepts HDMI from the Vision Buddy transmitter can be used to stream videos.  Can be used to view computer desktop from within the headset.

Learn about accessible gaming: How to Set Up Accessible Gaming for the Visually Impaired Gamer

In the End…

Determining which unit is right for you can be difficult.  The manufactures are changing and updating their product as the technology evolves. 

The right assistive device for you will depend on your type of vision loss and your remaining useable vision.  While some of these head-borne devices are simple to understand and use, others require some training and willingness to learn new technology. The functionality of some of these devices is incredible.

Determine what your priorities are and how you want your unit to help you.  For example:

Reading and/or video and television watching,

mobile or stationary,

work or school ( a lot of functionality) or leisure (casual viewing.)

Learn about CCTVs for school and work accessibility: What is CCTV for the Visually Impaired?