Abstract
Cataract is defined as the loss of lens transparency because of opacification of the lens. Based on the causes, cataracts can be classified into age-related cataract, paediatric cataract and cataract due to other causes1. 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 common2. Cataract occurs more frequently in low to medium socioeconomic background individuals, and therefore more common in developing countries.3
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