Zone Quick Test

The Zone Quick Test is a valuable diagnostic tool in optometry for assessing tear volume and diagnosing dry eye conditions. This test utilizes phenol red-impregnated threads that are placed at the junction of the lower eyelid for a brief period. The threads change color in response to the tear volume, turning from yellow to red, which allows for a quantitative measure of tear production. The Zone Quick Test is particularly useful for its quick results and minimal patient discomfort, making it an excellent choice for routine dry eye screenings. Results from this test help optometrists identify patients with aqueous tear deficiency, enabling targeted interventions such as prescribing tear supplements, initiating anti-inflammatory therapies, or implementing environmental and lifestyle changes to enhance tear production and alleviate symptoms.