Random-dot-stereogram performance by strabismic, amblyopic, and ocular-pathology patients in an operant-discrimination task.
Stereopsis performance was assessed in 88 optometric patients using an operant match-to-sample discrimination task involving random dot stereograms (RDSs). All normals passed the RDS test, and all constant strabismics without amblyopia, microtropes, and amblyopic strabismics failed. Only a portion of anisometropic amblyopes, intermittent strabismics, and ocular-pathology patients passed. The findings were interpreted as indicating that stereopsis with a RDS may be better predicted and explained in terms of binocular fusion and bifoveal alignment than by visual acuity.
D000293:Adolescent; D000328:Adult; D000550:Amblyopia / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D003867:Depth Perception; D006801:Humans; D013285:Strabismus / Q000175:diagnosis*; D014787:Vision Tests / Q000295:instrumentation / Q000379:methods*; D014792:Visual Acuity