The Butterfly-S Stereopsis Test with Standard Shapes includes:

Butterfly-S Book

Standard Viewer (Adult)

Pediatric Viewer

Manual

Butterfly-S Stereopsis Test with Standard Shapes features:

Graded circle test from 400 seconds now down to 20 seconds

No monocular clues with NEW technology

New improved booklet

Answer key on back cover

Includes both adult and pediatric polarized viewers

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