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

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In the context of eye examinations, what does the term "OS" refer to?

Right eye

Left eye

In the context of eye examinations, "OS" stands for "oculus sinister," which is Latin for "left eye." This terminology is commonly used in ophthalmology and optometry to specify which eye is being discussed or examined. The use of such specific terms helps ensure clarity and precision when documenting and communicating about eye health, especially in medical records or prescriptions.

The other options refer to different terms: "OD" means "oculus dexter," which refers to the right eye, and "OU" means "oculus uterque," which refers to both eyes. Understanding these abbreviations is essential for anyone involved in eye care to accurately interpret and convey information regarding a patient's visual health.

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Both eyes

None of the above

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