Iridotomy
An iridotomy is an ophthalmic procedure in which, in the case of chronic as well as acute narrow-angle glaucoma, a flow opening is made in the iris to improve the aqueous humor circulation . Like surgical iridectomy , which was introduced as a glaucoma operation in 1857, its aim is to create a “ bypass ” through the peripheral iris coloboma that bypasses the iridolenticular blockage.
This can usually be done without opening the eyeball using a Nd: YAG laser , or in the case of an extremely narrow chamber angle or corneal edema, it can be done as a surgical iridectomy, through an incision on the edge of the cornea or during another eye operation .