Peripheral iridectomy is a surgical procedure used to treat angle-closure glaucoma by creating a small hole in the peripheral part of the iris. This helps to open up the drainage angle of the eye and allows aqueous humor to flow more freely, reducing intraocular pressure (IOP).

The procedure is typically performed with a laser, and it helps to prevent future attacks of acute angle-closure glaucoma, a condition that can lead to permanent vision loss if left untreated.

Peripheral iridectomy is an effective solution for managing angle-closure glaucoma, and it is often done in combination with other glaucoma treatments.