Certified Paraoptometric (CPO) Practice Exam 2025

Disable ads (and more) with a membership for a one time $2.99 payment

Gear up for the Certified Paraoptometric (CPO) Exam 2025. Study with interactive quizzes and multiple-choice questions with comprehensive explanations. Excel in your exam with our tailored preparation tools!

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!

Practice this question and more.

What is the purpose of ophthalmic stains or dyes?

To numb the eye area
To stain the eye for various diagnostic procedures
To dilate the pupil
To relax the eye muscles

The correct answer is: To stain the eye for various diagnostic procedures

The purpose of ophthalmic stains or dyes is to stain the eye for various diagnostic procedures, which is precisely what your answer indicates. These stains are used to enhance the visibility of specific areas of the eye, allowing eye care professionals to assess conditions such as corneal abrasions, foreign bodies, or other surface irregularities more effectively. For example, fluorescein dye is commonly used in conjunction with a blue light to visualize the cornea and identify any damage or defects. The other options relate to different functions that are not associated with ophthalmic stains. Numbing the eye area is typically achieved through anesthetic drops, dilating the pupil involves the use of mydriatic medications, and relaxing the eye muscles is done with specific drugs designed for that purpose. Thus, the role of ophthalmic stains focuses solely on diagnostic enhancement.