Cataracts - Surgery
Surgery for a cataract involves removing the natural lens of the eye that contains the cataract.
Cataracts - Exams and Tests
Diagnosis of cataracts is based on a medical history and physical examination. Often tests are used to: Confirm the presence of a cataract. Rule out other conditions that may be causing vision loss. For more information, see the topics Vision Tests, Ophth
Cataracts - Medications
Learn about medications used to treat cataracts.
Cataracts - Topic Overview
What is a cataract? A cataract is a painless, cloudy area in the lens of the eye that blocks the passage of light to the retina.
Cataracts - What Happens
Cataracts may remain small and may not be noticeable. They often do not seriously affect vision, and many cataracts do not need to be removed. Some cataracts grow larger or denser over time, causing severe vision changes.
Cataracts - What Increases Your Risk
Risk factors for cataracts include age, ethnicity, sex, and others.
Nd:YAG Laser Posterior Capsulotomy After Cataract Surgery
Information on laser surgery called Nd:YAG posterior capsulotomy, an outpatient procedure for cataracts.
The lens of the eye is enclosed in a lining called the lens capsule. Extracapsular surgery, also called extracapsular cataract extraction (ECCE), involves removing the lens with the cataract from the lens capsule.