Certified Paraoptometric (CPO) Practice Exam 2025

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What is the computer-assisted method used for mapping the surface curvature of the cornea?

Topography
Keratometry
Refraction
Optometry

The correct answer is: Topography

The computer-assisted method used for mapping the surface curvature of the cornea is known as topography. This technique provides a detailed representation of the cornea's shape and curvature by creating a map, which can help diagnose and manage various corneal conditions, as well as assist in planning for procedures like refractive surgery. Topography uses specialized equipment to gather data about the surface contours of the cornea, allowing for a comprehensive assessment that is crucial in both clinical practice and research. While keratometry is also related to measuring the cornea, it focuses specifically on the steepest and flattest meridians rather than providing a complete mapping of the entire corneal surface. Refraction is the process of determining the optical prescription needed for corrective lenses and does not pertain to mapping corneal curvature. Optometry is the practice involving vision care, but it is a broader field that encompasses various aspects of eye health, not specifically mapping corneal curvature.