Ophthalmic Technician

Category - Ocular Motility and Visual Fields

Difficulty in finding the blind spot may be due to all of the following except
  1. a stimulus that is moved too slow.
  2. fixation loss.
  3. a stimulus that is too large.
  4. an enlarged blind spot due to glaucoma.
Explanation
Answer: D - an enlarged blind spot due to glaucoma.

Difficulty in finding the blind spot can be due to a stimulus that is either too large or is moving too slow or the loss of fixation.
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