Question

11. Why do old people mostly suffer from cataract?
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Answer 1

Explanation:

The most common causes of vision loss among the elderly are age-related macular degeneration, glaucoma, cataract and diabetic retinopathy. Age-related macular degeneration is characterized by the loss of central vision.

Answer 2

Answer:

Age-related macular degeneration (AMD) is the leading cause of loss of vision in people over 65 years of age. AMD is characterized by degeneration of the macula, the area of the retina responsible for central vision (Figure 1). Risk factors for AMD include advancing age, family history of AMD and cardiovascular risk factors such as hypertension and cigarette smoking. AMD can be divided into two categories: nonexudative (or “dry”) AMD and exudative (or “wet”) AMD.