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The PASS (Pediatric Assessment of Stereopsis with a Smile) 1 Smile Test is a depth perception test for basic screening of stereopsis in children and non-readers.
Includes 3 cards (720, Demo & Blank), a pair of the Children's Stereoacuity Glasses, and a pair of the Intermediate Stereoacuity Glasses.
Testing distance: 16"/40 cm.
Attention CA Residents: Prop 65 Warning