What Is cataract? A cataract develops when the clear lens inside the eye becomes cloudy, often due to ageing, high blood sugar, ocular trauma, certain medicines, or long-term UV 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/healpedia/816498608242311168/clear-vision-starts-here-advanced-cataract-eye