Certified Paraoptometric (CPO) Practice Exam 2025

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Prepare for the Certified Paraoptometric Exam with our comprehensive quiz featuring multiple-choice questions. Each question is accompanied by hints and explanations, helping you build your knowledge and confidence. Get ready to excel in your career!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What characterizes glaucoma?

Inward turning of both eyes
A loss of vision in one eye
Damage to the optic nerve from increased ocular pressure
Formation of excess tears

The correct answer is: Damage to the optic nerve from increased ocular pressure

The correct answer is characterized by damage to the optic nerve from increased ocular pressure. Glaucoma is primarily associated with elevated intraocular pressure, which can lead to progressive optic nerve damage and visual field loss. This condition typically doesn't present symptoms in its early stages, making regular eye examinations crucial for detection. By specifically focusing on the optic nerve and the effects of raised pressure within the eye, this answer reflects the core aspect of glaucoma's pathology and rationale behind its classification as a leading cause of irreversible blindness worldwide. The other choices describe conditions or symptoms that are not characteristic of glaucoma. For instance, inward turning of both eyes relates more to strabismus or other ocular motility issues, and while loss of vision can occur due to glaucoma, it is not limited to just one eye and is not the defining feature. The formation of excess tears is more associated with other ocular conditions rather than glaucoma.