Low Vision Aids

Eyeglasses Used for Magnification

Near vision can be improved by strengthening the eyeglass prescription to magnify. The advantages of high powered reading glasses are that they can have a larger field of view and are hands-free.

Adapting to low vision should start with a comprehensive eye examination to optimize your vision with the best eyeglass prescription. This prescription is for distance and near viewing. What defines those with low vision is that even with the best prescription, they are unable to get perfect vision.  More is needed. (more…)

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Hand-held Magnifiers

Hand-held optical magnifiers come in many styles, sizes, and magnification powers. Commonly, they are sold as either round or rectangular clear lenses, with a handle. Other types include small pocket magnifiers and a plastic ‘card’ style.

Hand-held magnifiers
Hand-held magnifiers

The actual amount of magnification that you get form a hand-held magnifier is variable and dependent on how you use it. Optical lenses have an optical property called focal length. If the lens is held above the page, at the focal length, you will get the magnification indicated by the manufacturer. If you hold it closer to the page, at a distance less than the focal length, you will get less magnification.  Magnification is also dependent on whether you wear your distance glasses, your bifocals, or no glasses at all. (more…)

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Low Vision Aids for the Visually Impaired

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.

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).

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Introduction to Assistive Technology for Low Vision

Low vision aides  are associated with high powered eyeglasses and magnifiers.  Assistive technology refers to  low vision aids, both high tech and low tech. They are devices and products designed to level the playing field for those with visual impairments remain active, engaged, and independent.

 With assistive technology, students can keep up with their classmates and move efficiently through the higher levels of education.  The working visually impaired can maintain employment with the right assistive technology in place. When we are not working or going to school, assistive technology helps with activities of daily living. (more…)

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