Certified Paraoptometric (CPO) Practice Exam 2025 – All-in-One Study Guide to Ensure Exam Success!

Question: 1 / 420

What is a primary function of tonometry in eye care?

To measure visual acuity

To assess intraocular pressure

The primary function of tonometry in eye care is to assess intraocular pressure. This procedure is crucial because it helps in the diagnosis and management of glaucoma, a condition characterized by elevated intraocular pressure that can lead to optic nerve damage and vision loss. Maintaining the health of the eye involves monitoring this pressure, as fluctuations can indicate potential problems.

Visual acuity measurement focuses on determining the sharpness or clarity of vision but does not provide any information about intraocular pressure. Evaluating pupil response assesses the functioning of the optic nerve and the retina but is also unrelated to tonometry. Checking for cataract formation involves analyzing the lens of the eye but does not pertain to measuring pressure within the eye. Thus, assessing intraocular pressure is the essential role of tonometry in eye care.

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To evaluate pupil response

To check for cataract formation

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