Iridotomy
Iridotomy
Iridotomy (pronounced: ir-i-DOT-uh-mee) is a surgical procedure that is performed on the eye. Specifically, it involves making a small hole in the iris, the colored part of the eye, to allow fluid to flow more freely within the eye.
Etymology
The term "iridotomy" comes from the Greek words "iris" (meaning "rainbow") and "tome" (meaning "cutting"). It was first used in the late 19th century.
Procedure
An iridotomy is typically performed to treat or prevent glaucoma, a condition that can cause damage to the optic nerve due to increased pressure within the eye. The procedure is usually done with a laser (known as a laser iridotomy) and is often performed on an outpatient basis.
During a laser iridotomy, the ophthalmologist uses a focused beam of light to create a small hole in the peripheral iris. This hole allows the aqueous humor, the fluid in the front of the eye, to flow from the posterior chamber to the anterior chamber, thereby reducing the pressure within the eye.
Risks and Complications
As with any surgical procedure, there are potential risks and complications associated with an iridotomy. These may include inflammation, bleeding, increased intraocular pressure, and damage to the cornea or lens. In rare cases, the hole may close up after surgery, requiring a repeat procedure.
Related Terms
External links
- Medical encyclopedia article on Iridotomy
- Wikipedia's article - Iridotomy
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