This adult projector slide test depth perception and binocularity under distance conditions. The top portion of each slide is a standard non-vectographic projector slide. The bottom portion is a vectographic slide that contains suppression control targets, a distance stereo acuity test, fixation disparity and binocular balance. These slides fit most projectors like A.O., R.H. Burton, Marco, Reichert, Topcon, e Woodlyn, and are adaptable to a 10' or 20' lane. REQUIRES POLARIZING SCREEN.

Projector slide includes: Sloan letters monocular 20/100 - 20/15 (9 Lines) - astigmatic clock - acuity balance 20/30 - 20/20 (3 Lines) - acuity suppression 20/40 - 20/25 (3 Lines) - Sloan letters binocular 20/30 - 20/15 (4 Lines) - fixation disparity (with/without fusion lock) - stereopsis 260' - 73'