Certified Paraoptometric (CPO) Practice Exam 2025

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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!

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In terms of lens wear, what is the main function of plus lenses?

To reduce glare from sunlight
To correct hyperopia (farsightedness)
To provide a flat visual plane
To enhance peripheral vision

The correct answer is: To correct hyperopia (farsightedness)

The primary function of plus lenses is to correct hyperopia, also known as farsightedness. When a person is hyperopic, their eyes cannot focus on nearby objects clearly, which occurs because the light entering the eye is focused behind the retina. Plus lenses, which are convex in shape, bend light rays inward towards the retina, allowing for clearer vision of close objects. This correction enables individuals with hyperopia to see better at near distances, effectively addressing the difficulties they experience due to their condition. The other options pertain to functions that do not specifically relate to hyperopia correction.