Ophthalmic Assistant

Category - Keratometry, Tonometry, and Refractometry

All of the following are variables that can result in incorrectly high intraocular pressure readings except
  1. patient holding breath.
  2. patient straining.
  3. patient is myopic.
  4. patient squeezing eyelids.
Explanation
Answer: C - patient is myopic.

If a patient is holding their breath, straining, or squeezing their eyelids, the intraocular pressure can be incorrectly high. A patient should be comfortably seated and breathing normally.
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