Aids for Distance Vision: TV and Functioning Outside the Home

By Liz Segre

Having low vision doesn't mean you have to stay indoors or rely completely on others to do your shopping or yard work. There are lots of low vision devices to help your eyes work and feel better outdoors.

A common problem among visually impaired people is light and glare sensitivity. This is especially true among both pre- and post-op cataract patients and those with macular degeneration or diabetic retinopathy.

Special glare-reducing and blue-blocking lenses (so-called because they absorb the blue portion of the visible light spectrum) can be worn for more comfort outside, whether it's cloudy or sunny. They come in light and dark gray, yellow, orange and various shades of amber.

Some are photochromic, so they lighten or darken according to the amount of sunlight they are exposed to. Lens colors, light transmission percentages and blue light absorption capabilities are all variables that your eyecare practitioner or low vision specialist will take into account when helping you decide which option is best for you.

Glare-reducing and blue-blocking lenses come in prescription sunglasses, nonprescription clip-ons for your regular eyeglasses and side-shielded fit-over styles that are worn either alone or over your glasses.

For getting out and about, many partially sighted folks need assistance with their distance vision. Choices include handheld monocular telescopes (for use with one eye) and binoculars (for both eyes), as well as eyeglass-mounted telescopes. You may need a prescription for these, as well as special training to use them effectively. A low vision specialist can help you with this.

The ABL Autofocus helps vision impaired people who want to stay active.
GOLF brand monocular telescope for people who are vision impaired. Photo from Vision Advantage.
Corning's CPF 527X lenses help people who have light sensitivity due to macular degeneration or cataract surgery

Far left: The ABL Autofocus offers variable magnification at different viewing distances. Photo: Vision Advantage. The monocular telescope by GOLF is easy to carry, while Corning glare-control lenses are designed for cataract patients and others who are light-sensitive.

New head-mounted electronic magnifying glasses provide automatic focusing, so whether you need near, intermediate or distance vision, they can help you handle most situations more easily than handheld telescopes.

These glasses operate with a portable control unit and a rechargeable battery, so you can use them in stores, libraries or on the street. They provide good depth perception, which is missing from most other types of low vision magnifiers.

Finally, canes are generally thought of as aids for completely blind people or people with trouble walking. But if you are missing part or all of your peripheral (side) vision, or if you're having a problem with night blindness, canes can help you navigate unpaved areas and keep your balance. This is very important, because falls have become the leading cause of injury-related deaths among older people, according to the Centers for Disease Control.

Foldable or telescoping aluminum canes or walking sticks are light and sturdy and can be stored in a carrying case on your belt or stowed in a bag. Adding reflective tape to a cane makes it more visible to drivers at night.

[Page updated December 2007]

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