Gonioscopy

Why It Is Done

Gonioscopy is done to:

• Look at the front of the eye to check for glaucoma.
• See if the drainage angle of the eye is closed or nearly closed. This helps your doctor see which type of glaucoma you have. Gonioscopy can also find scarring or other damage to the drainage angle.
• Treat glaucoma. During gonioscopy, laser light can be pointed through a special lens at the drainage angle. Laser treatment can decrease pressure in the eye and help control glaucoma.
• Check for birth defects that may cause glaucoma.

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Author:	Douglas Dana Jan Nissl, RN, BS	Last Updated: August 25, 2006
Medical Review:	Adam Husney, MD - Family Medicine Ian MacDonald, MDCM, FRCSC - Ophthalmology
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