Gonioscopy

How It Is Done

Gonioscopy is usually done by a doctor who treats eye problems (ophthalmologist).

Eyedrops are used to numb your eye so that you will not feel the lens touching your eye during this painless examination.

Gonioscopy is usually done in your doctor's office. During gonioscopy, you may be asked to lie down or to sit in a chair. A microscope (slit lamp) is used to look inside your eye. If you sit, you will place your chin on a chin rest and your forehead against a support bar and look straight ahead. A special lens is placed lightly on the front of your eye, and a narrow beam of bright light is pointed into your eye. Your doctor looks through the slit lamp at the width of the drainage angle.

The examination takes less than 5 minutes.

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Author:	Jeannette Curtis	Last Updated: April 8, 2008
Medical Review:	Kathleen Romito, MD - Family Medicine Christopher J. Rudnisky, MD, FRCSC - Ophthalmology
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