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Ophthalmic Assistant

Category - Keratometry, Tonometry, and Refractometry

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All of the following are instruments for attaining an intraocular pressure reading except

Schiøtz tonometer.
Tono-Pen.
noncontact tonometer.
Campbell tonometer.

Explanation

Answer: D - Campbell tonometer.

The Schiøtz tonometer, the Tono-Pen, and the noncontact tonometer are all instruments for attaining an intraocular pressure reading. The Campbell tonometer is purely fictional.

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