Gonioscopy is an eye test that checks for signs of glaucoma. An eye specialist does this using a special lens and slit lamp to look at your eye’s drainage angle (anterior chamber angle). If the drainage angle is too narrow or closed, you may have glaucoma.

Mar 27, 2019 · Gonioscopy is a painless exam your ophthalmologist uses to check a part of your eye called the drainage angle. This area is at the front of your eye between the iris and the cornea. It is where fluid called aqueous humor naturally drains out of your eye.

Today, gonioscopy is a critical exam technique used for visualizing the anterior chamber angle. Due to total internal reflectivity at the tear-air interface, the angle cannot be seen without a gonioscopy lens. Use of a contact gonioscopy lens allows light to pass through the tear-air interface and bounce off a mirror to the examiners eye.

Oct 16, 2023 · Gonioscopy is a painless exam to check how wide or narrow the drainage angle in your eye is. An optometrist or ophthalmologist uses gonioscopy when a person has or may have glaucoma. The test takes about five minutes, and the results can …

In ophthalmology, gonioscopy is a routine procedure that measures the angle between the iris and the cornea (the iridocorneal angle), using a goniolens (also known as a gonioscope) together with a slit lamp or operating microscope.

Gonioscopy: What Is It? Gonioscopy is performed during the eye exam to evaluate the internal drainage system of the eye, also referred to as the anterior chamber angle. The “angle” is where the cornea and the iris meet.

Feb 27, 2025 · Gonioscopy (go-nee-AH-skuh-pee) is a test that eye doctors use to look at the drainage angle near the front of your eye. It helps them understand your risk for developing glaucoma, a serious eye disease that can harm your vision if it isn't properly managed.

Nov 8, 2017 · Direct gonioscopy, as the term suggests, provides a straight-on view of the angle rather than the mirror image given by the indirect lenses. Direct gonioscopy permits the examiner to vary the angle of visualization more readily—to enable one to look over the curvature of iris bombé, for example.

Nov 8, 2017 · Most examiners use gonioscopy to evaluate the trabecular meshwork, but the examination should include attention to the iris and cornea. In the dilated eye the gonioscope can be used to examine the ciliary body.

Gonioscopy is a specialized eye examination technique used by ophthalmologists to evaluate the drainage angle of the eye. This test is crucial for diagnosing and managing glaucoma, particularly angle-closure glaucoma and open-angle glaucoma.