Cataract occurs when the lens becomes cloudy and result in blurry or misty vision. It usually develops in older people (age-related cataract) but very rarely, some babies are born with this condition. This is known as congenital cataract and it can develop in one (unilateral) or both (bilateral) eyes. A congenital cataract is a clouding of the lens of the eye that is present at birth. The lens of the eye is normally clear. It focuses light that comes into the eye onto the retina.
Cataracts, in general, are diagnosed as adults. They are typically caused by an aging lens. They are easily removed and do not result in any long-term visual compromise. Congenital Cataracts, in contrast, can threaten long-term visual development. If significant, they should be treated aggressively with urgent surgery and monitored closely.