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Certified Ophthalmic Medical Technologist (COMT)

Category - COMT

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How is keratometry performed?

By using a tonometer.
By using a Placido disk.
By using an ophthalmoscope
By using a slit-lamp microscope.

Explanation

Answer: C - Keratometry is performed by using a Placido disk.

The Placido disk is used in keratometry to project a series of concentric rings onto the corneal surface, which is then measured to determine the cornea's curvature. The corneal curvature is evaluated from the reflected image.

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