Ophthalmic Assistant

Category - Ocular Motility and Visual Fields

The smallest size pupil diameter allowable for accurate automated perimetry is
  1. 3 mm.
  2. 4 mm.
  3. 5 mm.
  4. 1 mm.
Explanation
Answer: A - 3 mm.

The smallest size pupil diameter allowable for accurate automated perimetry is 3 mm. To ensure repeatable visual fields, consistent pupil diameter should be controlled during serial visual field testing.
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