Eyesight in the Elderly
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The Aging Eye[edit | edit source]
As we age, our sensory modalities (including vison) show gradual deterioration.
Older people must adapt to problems such as reduced visual field, decrease in visual acuity, delayed dark adaptation and decreased power of accommodation resulting in presbyopia. Taken together, these different visual problems all lead to impairment of visual function.
Then in addition, a large number of older people also suffer from medical conditions affecting function of the eye, such as glaucoma, Age Related Macular Degeneration, diabetic retinopathy and cataracts.
Impairments of visual function[edit | edit source]
Visual field reductions[edit | edit source]
With aging there is a decrease in peripheral and upper visual fields. It is thought likely that in the early stages this may be as a result of decreased pupil size and therefore less light admitted to the peripheral retina; later on changes may result from decreased retinal metabolism.
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Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
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