Ophthalmic Assistant

Category - Keratometry, Tonometry, and Refractometry

The power of a cylinder lens is found how many degrees away from its axis?
  1. 30 degrees
  2. 60 degrees
  3. 90 degrees
  4. 120 degrees
Explanation
Answer: C - 90 degrees

The power of a cylinder lens is found 90 degrees away from its axis.
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