Certified Ophthalmic Medical Technologist (COMT) Practice Exam 2025 – Comprehensive All-in-One Guide to Success

Question: 1 / 505

What does the "Shape Factor" on corneal topography printouts represent?

Variation of light reflection

Eccentricity of the cornea along the flatter meridian

The "Shape Factor" in corneal topography printouts specifically refers to the eccentricity of the cornea along the flatter meridian. This measure indicates how much the shape of the cornea deviates from a perfect sphere. A higher eccentricity value typically suggests a more conical surface, which is often associated with conditions like keratoconus, whereas a lower value indicates a more spherical cornea.

Understanding the Shape Factor is crucial for diagnosing and managing various refractive and corneal conditions. By assessing the eccentricity, practitioners can better understand the corneal curvature and its implications for vision correction procedures and overall eye health.

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Overall diameter of the cornea

Indentation of the cornea

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