Glaucoma refers to a group of eye conditions that lead to damage to the optic nerve. This nerve carries visual information from the eye to the brain. In most cases, damage to the optic nerve is due to increased pressure in the eye, also known as intraocular pressure (IOP).
The most common treatments for glaucoma are eye drops and, rarely, pills. Doctors use a number of different categories of eye drops to treat glaucoma. They either decrease the amount of fluid (aqueous humor) in the eye or improve its outward flow, and some do both. Sometimes doctors will prescribe a combination of eye drops
When operative surgery is needed to treat glaucoma, your ophthalmologist will use a microscope and specialized instruments to create a new bypass drainage channel for the eye fluid to leave the eye. The new channel helps to lower the eye pressure. Surgery will be recommended only if your ophthalmologist feels the benefit of a lower eye pressure achieved with an operation outweighs possible complications and/or further progression of optic nerve damage
Irridotomy is the laser procedure performed for eyes with narrow angle, eyes with risk of angle closure glaucoma. Another alternative name for this procedure is laser peripheral iridotomy, iridectomy and in short LPI or PI and SLT.