Please call us at 503-656-3999 if you believe your pet is experiencing an emergency. All specialty services are seen by appointment only. 

Gonioscopy

The fluid inside the eye is called the aqueous humor. The aqueous humor is produced and drains from the eye at approximately the same rate, resulting in a stable pressure inside the eye of 15 to 20 mmHg (millimeters of mercury). Glaucoma occurs as a consequence of a defect in the drainage angle resulting in inadequate outflow of aqueous humor and a subsequent buildup of pressure inside the eye. The resulting high pressure damages the optic nerve and results in blindness.

Gonioscopy is a technique used to evaluate the drainage angle. A goniolens (also known as a gonioscope) in conjunction with a slit lamp or operating microscope to gain a view of the drainage angle. The technique is essential to evaluate the non-glaucomatous eye for risk of a future attack of glaucoma.
 

Gonioscopy

Veterinary Ophthalmology services treat complicated or difficult problems such as cataracts, corneal ulcers, Entropion, Glaucoma, prolapsed... More

Northwest Vet Specialists

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