Eye Screening with the Lang Stereotest

Abstract

The Lang Stereotest is based on a random-dot pattern and cylinder gratings. Cylinder gratings provide a haploscopic testing device which does not require glasses. The youngest child to pass the test was 6 months old. Experimental studies were done on artificial anisometropia, monolateral impairment of vision and heterophoria. Eight hundred fourteen patients with motility disorders were analysed. No patient with large constant strabismus passed the test. It can be stated that no patient with significant monocular or binocular defects has been able to pass the Lang Stereotest.

• stereopsis
• Lang Stereotest
• cylinder gratings
• random dots
• microtropia
• amblyopia
• strabismus