Practice Quiz

Ophthalmic Technician

Category - Ocular Motility and Visual Fields

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The approximate center of the blind spot on Goldmann perimetry is located at which part of the visual field?
  1. 12-15 degrees temporal to fixation and 5 degrees below horizontal meridian
  2. 5 degrees temporal to fixation and 15 degrees below horizontal meridian
  3. 0-10 degrees temporal to fixation and 5 degrees below horizontal meridian
  4. 20 degrees temporal to fixation and 20 degrees below horizontal meridian
Explanation
Answer: A - The approximate center of the blind spot on Goldmann perimetry is located at 12-15 degrees temporal to fixation and 5 degrees below horizontal meridian.

The blind spot is charted by getting the target from non-seeing area to seeing area. Thus, there is a need for knowledge of blind spot in normal individuals.
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