Certified Paraoptometric (CPO) Practice Exam 2025

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Which term is associated with the concept of vision?

Ocul
Dipl
Irid
Chrom

The correct answer is: Ocul

The correct answer is associated with the anatomical and physiological aspects of the eyes. "Ocul" originates from the Latin word meaning "eye," linking it directly to vision. This root appears in various terms related to eye health and function, reinforcing its strong connection to the concept of vision itself. "Dipl" relates to double vision (diplopia) but does not encompass the broader concept of vision. "Irid" pertains to the iris, a specific part of the eye that regulates light entering, but it does not encapsulate the entirety of vision. "Chrom" refers to color, which is a component of visual perception but does not define the overarching concept of vision. Therefore, "Ocul" is the most appropriate choice as it fundamentally signifies the eye, the organ responsible for vision.