Biology Question Because of cataracts your neighbor was depr

Biology Question:

Because of cataracts, your neighbor was deprived of visual experiences during childhood. Lasr year, now an adult, her vision was restored by surgery, but she is having difficulty dealing with the visual world. This probably because:

A. brain cells normally devoted to vision died off or were diverted to other uses

B. normal pruning of the visual brain cells occurred

C. brain development ends in childhood

D. visual deprivation has no effect on brain development

Solution

Cataract is an eye related disease, in which the clear lense become cloudy or opaque. This leads to diminish vision. Lense generally focus the light on retina that is coming from an object. So presence of clear lens is necessary for good vision. The effective treatment for cataract is removal of cloudy lens by using surgery. For this question answe should be: B