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Stereo Fly Including LEA Symbols
Product Details
Brand:
Sperian/Titmus
Evaluates both gross stereopsis (355 to 700 seconds of arc) 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
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