Cataract: Sign and Symptoms, Types, Causes, Diagnosis and Management

Cataract : Cloudiness of Lens Definition A cataract is the clouding of the lens in the eye, leading to progressive vision impairment. It occurs due to changes in the lens proteins and fibers, reducing its transparency and affecting light transmission to the retina. Causes & Types of Cataract 1. Age-Related Cataract (Senile Cataract) – Most Common Oxidative stress leads to protein denaturation and lens opacification. Most common age-related cataract. Yellowish/brownish discoloration of the central lens nucleus. Associated with myopic shift (second sight phenomenon). Types of Senile Cataract A. Nuclear Cataract (Nuclear Sclerosis) Location: Affects the central (nuclear) part of the lens. Appearance: Yellowish or brownish discoloration of the lens nucleus. Symptoms: Gradual progressive decrease in vision. Myopic shift (patients may see better up close). Glare in bright light. Complications: Hardening of the nucleus (brunescence) may lead to difficulty in surgical removal. B. Cortical Cataract Location: …