Practice Quiz

Ophthalmic Technician

Category - Ocular Motility and Visual Fields

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Which of the following is TRUE?
  1. Visual field testing by Goldmann perimetry should be done in a brightly lit room
  2. Patient is made to wear corrective lenses in the trial lens set for testing central 30 degree visual field
  3. The machine should be calibrated once in a while for trouble shooting, never every day
  4. Target size and intensity is always kept constant
Explanation
Answer: B - The patient is made to wear corrective lenses in the trial lens set for testing central 30 degrees visual field. However, the corrective lenses must be removed before starting the peripheral visual field exam. The machine should be calibrated every day before starting cases for the day. Target size and intensity vary depending on the visual acuity.
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