Tag Archives: electronic technology

Monitoring the Progression of Age Related Macular Degeneration

Technology for monitoring those at risk for the progression to Wet AMD

Those with age-related AMD are familiar with the Amsler Grid.  The grid is a cheap and easy,

A normal appearing grid

method of self monitoring for changes in vision related to the central vision.   The grid is usually given to those patients with macular changes by their examining eye doctor.  Traditionally, it is a piece of paper or card with the grid printed on it.  The grid is held at 10 inches from the eye (the other eye is closed) and observe: are there any broken lines, missing squares, doubling of the lines, wavy lines?  The appearance of the grid should be consistent from day to day.

Dry AMD can be a slow,  progressive decline in vision. The

Grid appears distorted

intent is to keep the patient alert to the status of their vision. It is very common for people to be unaware of changes to vision, especially for those with dry AMD.

There is another category of AMD referred to as ‘wet’ AMD.  This is a much faster, progressing sight-threatening stage of AMD.  About 10% to 15% of those with dry AMD will progress to wet AMD.  If you have been identified by your eye care doctor as someone who is at risk for wet AMD, there is a technology designed to monitor and identify the onset of wet  AMD sooner.  The sooner, the better.  The sooner treatment has begun, the more sight can be saved.

The devise is called ForeseeHome by Notal Vision.  It is a table top monitoring device to be

ForeseeHome tabletop monitor

used daily . The test takes about 3 minutes per eye.  The test results are sent to Notal Vision.  If changes are detected, Notal Vision notifies you eye care doctor.  The plan is for  your doctor’s office to call to make an appointment for you to see the doctor.  In this way you can receive prompt treatment to preserve your vision.

How to get hooked up with this system:

First, you must be identified by your doctor as being at risk for developing wet AMD.  It is also the first step to getting help through insurance to get coverage for the system.

ForeseeHome test screen

Follow this link for doctors in your area who participate in this Notal  Vision program: Find a Doctor 

The set up is quite easy.  You do not need a computer or even wifi.  The Notal company has a phone number to help you get set up.

To see a video on how it works, follow this link:  ForeseeHome video

Electronic Low Vision Aids:

Video Magnifiers and CCTVs

Video magnifiers and CCTvs vary in size, but are basically a camera, a screen to view what the camera ‘sees’, and a light source. The size will determine its usefulness for various reading tasks.  While most video magnifiers are hand-held and portable, most CCTV units requires its own space on a desktop. 

Both have some of the same features:

  • More than one magnifying level;
  • True color mode is seeing the colors on the screen as they appear on the page;
  • Inverse mode is the capability to reverse print to white on a black background; and
  • Other color modes, such as yellow print on either a blue or black background, or the reverse which would be blue or black print on a yellow background.

Those are the similarities. Here are the differences: Continue reading Electronic Low Vision Aids:

Low Vision Aids for the Visually Impaired

Browse any of the internet sites, like Amazon or  Independent Living, Aids and you will see a vast array of devices called ‘low vision aids.’   Low vision aids can be anything from bold lined paper to the desktop CCTV (closed circuit television).

Simplified, the low vision aids can be divided into 3 basic  categories:

  1. Objects modified for use by the visually impaired;
  2. Optical devices; and
  3. Electronic technology.

Continue reading Low Vision Aids for the Visually Impaired