Ophthalmic Assistant

Category - Supplemental Skills

The first step in determining the anterior chamber depth is
  1. holding a penlight directly in front of the eye.
  2. holding a penlight temporal to the eye and parallel to the iris plane.
  3. holding a penlight above the eye and parallel to the iris plane.
  4. slit-lamp examination.
Explanation
Answer: B - holding a penlight temporal to the eye and parallel to the iris plane.

The first step in determining the anterior chamber depth is holding a penlight temporal to the eye and parallel to the iris plane. If the side opposite from the source of light casts a shadow,then the iris is bowingout. If the iris is bowed out then it needs to be checked on a slit lamp.
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