A cataract is a clouding of the crystalline lens of the eye.
Because it is not a film over-the lens it can’t be removed with a laser or eye drops. Surgery is the only way to treat cataract.
Surgery involves removing the cloudy lens and replacing it with a plastic intraocular lens (IOL). Both steps are generally done at the same time, although the implant can be placed later.
Before and after surgery, visual acuity change.