Sight Testing and Refraction

Colour Vision and Stereo Tests | Frisby Stereo Test

Frisby Stereo Test

Frisby Stereo Test

Frisby Stereo Test

  • A simple, durable, quick test.
  • Three square transparent plates 6mm, 3mm, 1.5mm) have four similar patterns printed, three on one surface and one on the other, hence one appears in relief as closer or nearer.
  • The patient indicates which square stands out in space from the others.
  • The box is used for storing the plates and also has a fold-out flap for providing a clear background against which the plates are presented.