Practice Quiz

Ophthalmic Assistant

Category - Keratometry, Tonometry, and Refractometry

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At the commencement of examination, if the keratometer mires look blurry or doubled to the examiner, what should be done?
  1. The focusing knob should be adjusted
  2. The eyepiece should be adjusted
  3. The joystick should be used to move the barrel
  4. A and C
Explanation
Answer: D - A and C

If the keratometer mires look blurry or doubled to the examiner, the focusing knob or the joystick should be adjusted to move the barrel. The three circles appear single and are in sharp focus.
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