Certified Ophthalmic Technician (COT) Practice Test 2025 - Free COT Practice Questions and Study Guide

Gonioscopy is a specialized examination technique used to visualize the anterior chamber angle of the eye, which is crucial in evaluating conditions related to intraocular pressure. Glaucoma, particularly open-angle and angle-closure glaucoma, requires gonioscopy to assess the angle for any abnormalities or blockage that may contribute to elevated intraocular pressure. By viewing the trabecular meshwork and the drainage angle, the practitioner can determine whether there are anatomical issues that could lead to or are causing glaucoma.

The other conditions listed do not typically require gonioscopy. Cataracts primarily affect the clarity of the lens and do not involve the angle directly. Retinal tears are best evaluated with indirect ophthalmoscopy or other retinal imaging techniques. Macular holes relate to the central retina and do not necessitate the assessment of the anterior chamber angle. Therefore, the use of gonioscopy is specifically aligned with the evaluation and management of glaucoma.