Certified Paraoptometric (CPO) Practice Exam 2025

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What are the ocular adnexa?

Photoreceptors in the retina
Adjacent structures of the eye
Fluid-filled areas within the eye
Cells that produce tears

The correct answer is: Adjacent structures of the eye

The ocular adnexa refers to the structures that are associated with and support the eye but are not part of the eyeball itself. This includes the eyelids, eyelashes, tear glands, and the surrounding orbit. These structures play critical roles in protecting the eye, controlling light entry, and maintaining moisture on the eye's surface. Understanding the ocular adnexa is essential for practices related to eye care, as they are integral to overall eye health and function. The other options do not correctly define ocular adnexa, as they refer to aspects that do not encompass the supportive and protective structures surrounding the eye.