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Low Vision Assessment and Rehabilitation

Initial Low Vision Management

Environmental Modifications

Glare

Full coverage sunglasses that provide opaque or translucent side shields are often useful. Dr. Cole wore darkly tinted "goggle" type lenses in bright sunlight.

There are two types of glare: discomfort glare and veiling glare.

Discomfort glare refers to uncomfortable reflections of light within the normal environment, such as shiny magazine pages, high gloss floors, and uncovered windows. Discomfort glare can cause people significant problems. The use of a cutout line guide for reading, the use of secured rugs, or of non-gloss flooring, venetian blinds or curtains can minimize these problem areas.

Veiling glare is caused by scattering of light within the eye particularly as can occur with evolving cataracts or from corneal disease. Visual resolution is adversely affected by glare and may be minimized by the use of yellow lens filters or polaroid lenses.

Genuine photosensitivity is usually associated with diseases that affect the macula such as diabetic retinopathy, ocular albinism, and retinitis pigmentosa. Eye discomfort and impaired visual functioning may be present even at normal levels of illumination. Severe photosensitivity may cause "whiteout." Control of illumination, absorptive filters, and the use of visors or brimmed hats are often useful.


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Last Update: Nov 29 2012