CBSE Class 10 Answered
What is cataract?
Asked by Rupal Sinha | 06 Dec, 2013, 08:48: PM
Expert Answer
A cataract is a clouding that develops in the crystalline lens of the eye or in its envelope (lens capsule), varying in degree from slight to complete opacity and obstructing the passage of light. Early in the development of age-related cataract, the power of the lens may be increased, causing near-sightedness (myopia), and the gradual yellowing and opacification of the lens may reduce the perception of blue colors. Cataracts typically progress slowly to cause vision loss, and are potentially blinding if untreated. It is possible to restore vision through a cataract surgery.
Answered by Faiza Lambe | 07 Dec, 2013, 09:56: AM
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