Please read description carefully.
Do not base your order on the picture presented.
Tests designed to rapidly test for amblyopia & strabismus using gross thru fine stereopsis (2500 to 20 sec of arc).
- Graded circle test from 800 sec now down to 20 sec.
- No monocular clues.
- New improved booklets.
- Answer key on back cover.
- Includes polarized viewers.