Stereo Acuity Test - Butterfly with LEA Symbols
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Tests and evaluates random dot stereo depth perception for both gross stereopsis and fine depth perception
Graded circle test (800 to 40 seconds of arc)
LEA symbols for children (400 to 100 seconds of arc)
Test includes:
1 pair of Standard 3-D Viewers
Answer key on back cover
SKU: 93950