Posterior Capsulotomy (YAG laser)

A posterior capsulotomy is a surgical laser procedure that may be necessary after cataract surgery.

During cataract surgery, part of the front (anterior) capsule that holds the lens is removed. The clear back (posterior) capsule remains intact. For many patients, the posterior capsule remains clear long-term.

Sometimes posterior capsule needs attention

But in 30 to 50 percent of people, the posterior capsule loses its clarity. This can occur within months or years after the initial cataract surgery. When this happens, an opening can be made in the capsule with a laser (posterior capsulotomy) to restore normal vision.

Before the laser procedure, your doctor does a thorough eye examination to make sure there is no other reason for vision loss.

A posterior capsulotomy is painless and takes five minutes. Eye pressure may be taken after the operation to make sure it is not elevated.

Potential but rare complications following laser posterior capsulotomy are increased intraocular pressure and retinal detachment.