Cataract is a vision disorder characterized by blurred vision due to the clouding of the lens.
The lens of the human eye functions as the lens of a camera. It is located behind the pupil, and its function is to focus light rays onto the retina. The optic nerve then transforms the images into electrical impulses and transmits them to the brain.
A cloudy lens prevents light from penetrating to the retina and the images will be blurred.
Only surgery can cure cataracts; it’s called extraction by phacoemulsification: Cataract is emulsified and aspirated through a small orifice then the lens is replaced by an artificial lens.
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