What Are Cataracts?
6. Types
Cataracts can be classified based on the part of the lens that is affected. Nuclear cataracts are cataracts that affect the center of the lens. This often results in nearsightedness. It can also temporarily improve reading vision. As it progresses, the lens changes in color and causes cloudy vision. Cataracts affecting the edges of the lens are known as cortical cataracts.
It first affects the outer edge and progresses to the center and interferes with light transmission. Posterior subcapsular cataracts are cataracts affecting the back of the lens. It usually starts small at the back of the lens. This type of cataract often interferes with reading vision, causes halos, glares, and reduces vision when the patient is in an environment with bright lights.
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