Butterfly Stereo Test
- The Stereo Butterfly tests and 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.
- Less scary for children than the fly test
- Graded circle test (800 to 40 seconds of arc)
- Animal test for children (400 to 100 seconds of arc)
£179.00
