The relationship between stereopsis and visual acuity after occlusion therapy for amblyopia

To investigate the relationship between visual acuity (VA) and stereoacuity after occlusion therapy in patients with various types of amblyopia. Retrospective noncomparative case series. Sixty-one children with amblyopia caused by anisometropia with no strabismus (26 children), small angle (≤8 prism diopters) or intermittent strabismus (20), or both (15). All were treated with occlusion therapy. Visual acuity and near stereopsis using the Titmus test (Stereo Optical Inc., Chicago, IL) were measured at each clinic visit. The change in near stereopsis relative to distance VA after occlusion therapy. Mean age at initiation of therapy was 5.1 years (range = 3.5–8) and mean follow-up 52.3 weeks (range = 13–192). Mean duration of occlusion was 36 weeks (range = 12–102). After occlusion treatment, mean VA of all children improved from 0.43 to 0.78 ( P