Cataract is opacity or cloudiness of the crystalline lens, which may prevent a clear image from forming on the retina. Surgical removal of the lens may be necessary if visual loss becomes significant
, with lost optical power replaced by an intraocular lens, contact lens, or aphakic spectacles. May be congenital or caused by trauma.
The second set of photos are of a patient with bilateral cataracts, the patient experienced some blurred central vision.