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Physical Medicine & Rehabilitation
Low Vision Conditions
Low vision is defined as a decrease in your vision that cannot be corrected with surgery, medication, eye glasses or contact lenses and make it difficult to do everyday activities. Low vision can be caused by: MACULAR DEGENERATION which results in reduced visual acuity because the macula is responsible for discrimination of fine detail and color vision. Individuals experiencing macular degeneration rely on their peripheral vision (or side vision). Having uncontrolled DIABETES, for long periods of time can result in retinal hemorrhages, macular fluid buildup and cataracts. CATARACTS cause a reduction of visual acuity due to opacities in the lens of the eye. With technology today, cataracts can be removed, but there are a few individuals with other ocular problems that make cataract removal non-beneficial. GLAUCOMA is a condition of high ocular pressure, which may result in a decrease of their visual field (side vision). These individuals may have good central vision in the initial stages, but a loss of peripheral (or side) vision. RETINITIS PIGMENTOSA is a genetic degeneration of the peripheral retina, therefore causing night blindness and a loss of peripheral (or side) vision. STROKE patients may develop a hemianopsia, which is a loss of half of their visual field (side vision). A right hemianopsia not only results in difficulty with reading, but also in their ability to safely walk around. |
