What is cataract?
Cataract is the clouding of the natural lens and is the most common cause of preventable blindness worldwide. The lens acts like the focusing system which focusses light onto the retina . with age, when it starts becoming cloudy, it obstructs the passage of light and the quality of vision begins to deteriorate. This affects the quality of day to day activities. Most people develop cataract in their 50’s, but some may develop it even sooner.
Other risk factors which contribute to cataract formation are trauma, infection, inflammation, steroid use , Diabetes , previous eye surgery, excessive exposure to sunlight ( UV-B radiation), genetic abnormalities.