Sight Testing and Refraction

Colour Vision and Stereo Tests | Random Dot (Butterfly) Stereo Test

Random Dot (Butterfly) Stereo Test

Random dot (butterfly) stereo test complete with spectacles

Random Dot (Butterfly) Stereo Test

  • Random dot (Butterfly) stereotest evaluates random dot stereo depth perception for both gross stereopsis (2500 to 1200 seconds of arc) and fine depth perception.
  • The figures present on the test cannot be identified without viewing glasses.
  • The test includes: - Graded circle test (800 to 40 seconds of arc) - Animal test for children (400 to 100 seconds of arc) - One pair of standard 3-D viewers