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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Which of the following describes nystagmus?

A repetitive condition causing uncontrolled eye movements
A thickening of the cornea tissue
A type of retinal condition
An abnormal growth on the conjunctiva

The correct answer is: A repetitive condition causing uncontrolled eye movements

Nystagmus is characterized by repetitive and uncontrolled eye movements. This condition can manifest as horizontal, vertical, or circular movements and may occur in one eye or both. It can result from various factors, including neurological issues, vestibular disorders, or can be congenital in nature. Recognizing nystagmus is essential as it can sometimes indicate underlying health issues that may require further assessment or intervention. The other options relate to different ocular conditions: thickening of the cornea tissue refers to changes in the cornea, a retinal condition pertains to disorders affecting the retina, and an abnormal growth on the conjunctiva is indicative of lesions such as conjunctival cysts or pterygia. These items do not describe nystagmus, emphasizing the distinctiveness of the uncontrolled eye movement characteristic.