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