PASS 3 Smile Test
Preschool Assessment of Stereopsis with a Smile (PASS) - Depth perception test for quantitative assessment of stereopsis in children and non-readers. Includes: 6 Cards (480, 240, 120, 60, Demo & Blank) with Carrying Case, 1 Pair Pediatric Polarized Viewers & 1 Pair Intermediate Polarized Viewers
Testing distance is 16"/40cm