Certified Ophthalmic Assistant Practice Exam

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How can the results of a keratometry be expressed?

In inches
In feet
In centimeters
In diopters

The correct answer is: In diopters

Keratometry results are typically expressed in diopters. Diopters are the unit of measurement used to quantify the curvature of the cornea. By expressing keratometry results in diopters, ophthalmic assistants and eye care professionals can accurately assess the shape of the cornea, which is essential for determining the correct prescription for contact lenses or planning for refractive surgery. This unit of measurement provides valuable information about the corneal curvature and helps in diagnosing conditions such as astigmatism.