Abstract
Background: Cataract is defined as the loss of lens transparency because of opacification of the lens. Age-related cataract is the most prevalent type in adults, with the onset between age 45 to 50 years, while in children hereditary and metabolic causes are most common. Aim of the work: In this study, our aim was to discuss the epidemiology, pathophysiology, classification, risk factors, symptoms, and management of cataracts. Methodology: Weconducted this review using a comprehensive search of MEDLINE, PubMed and EMBASE from January 1981 to March 2017. The following search terms were used: cataracts, causes of cataract, pathophysiology of cataract, management of cataract. Conclusion: Cataract is one of the most common causes of blindness worldwide, and more prevalent in developing countries. It is also the most curable cause of blindness which involves a simple surgical procedure.
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