An impairment of vision as a result of old age is known as

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Presbyopia is a normal age-related condition that affects the ability of the eye to focus on nearby objects. It is caused by a natural hardening of the lens in the eye over time, which makes it more difficult for the eye to change focus. Astigmatism, exotropia, and esotropia are other conditions that can affect vision but are not specifically related to old age. Nyctalopia, also known as night blindness, is a condition where an individual has difficulty seeing in low light conditions and is not typically related to old age.

An Impairment of Vision as a Result of Old Age