A cataract is a condition in which the lens of the eye becomes cloudy, causing blurred or unclear vision. Normally, the lens is transparent and helps focus light onto the retina. When a cataract forms, light cannot pass through properly.
Common causes include:
The main treatment is cataract surgery, where the cloudy lens is removed and replaced with an artificial lens. It is a common and usually safe procedure.
Cataract is a common eye condition, especially in older adults, and can usually be treated successfully.