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Ophthalmic Assistant

Category - Supplemental Skills

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What instrument is used to measure thedistention of the anterior surface of the cornea beyond the lateral orbital rim?

Tonometer
Keratometer
Exophthalmometer
IOL Master

Explanation

Answer: C - Exophthalmometer

The exophthalmometer is used to measure the distention of the anterior surface of the cornea beyond the lateral orbital rim. The exophthalmometer can also identify enophthalmos (retraction of the eye into the orbit), a sign of blow-out fracture or certain neoplasms.

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