What Is cataract? A cataract develops when the clear lens inside the eye becomes opaque, often due to aging, high blood sugar, ocular trauma, specific medications, or prolonged sunlight exposure. Symptoms include blurred vision, glare and halos around lights, faded colours, frequent changes in spectacles, and difficulty with night driving. https://www.tumblr.com/maheshnadgir/816491371711152128/clear-vision-starts-here-advanced-cataract-eye