Causes of cataract
1. Age related cataract
Most of the cataracts are related to aging. Types of age related cataracts are Nuclear cataract, Cortical cataract and Posterior sub capsular cataract.
Nuclear Cataract People with nuclear cataract have a greater difficulty in distant vision than near vision. They go in for a process called second sight
"Second Sight"- Nuclear cataracts cause a shift in the spectacle power towards the minus side (myopic), such people who are exclusive on reading glasses no long require them. This is known as "second sight". But as the lens changes progresses the patient will ultimately lead to diminution of vision and require surgery.
2. Cortical cataract
Increase in the water content and alteration in the protein structure
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Shantived Institute of Medical Sciences, Sikandra
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