Selective Laser Trabeculoplasty: 10 Commonly Asked Questions

Laser peripheral iridotomy is the standard first-line treatment in closed angle glaucoma and eyes at risk for this condition.

It has been used since 1984 both as treatment and prevention of the disease.

1. What is the angle and what is closed angle glaucoma?

The angle is the space between the clear part of the eye (cornea) and the colored part (iris), close to their meeting point near the edge of the iris. It contains the trabecular meshwork ™, which is the main structure that directs fluid out of the eye.

In closed angle glaucoma, the angle is closed in many or most areas, causing increased eye pressure, which leads to optic nerve damage, and possible vision loss. This rise in eye pressure may occur suddenly (an acute attack of angle closure) or gradually. There are also precursor forms of the disease in which the angle is closed but the eye pressure is not high and the optic nerve is not affected yet.

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