Long-term stability of prism correction of heterophorics and heterotropics; a 5 year follow-up. Part I: Heterophorics.
Twenty heterophoric and 10 heterotropic patients with long standing severe visual symptoms were corrected with prisms for permanent wearing using the full-correction method of H.-J. Haase. The patients were reexamined 1 and 5 years after completion of treatment. Stable corrections obtained by stepwise optical full-correction were also maintained during a follow-up period of 5 years. Sensory and motor adaptations were largely removed and asymptomatic binocular vision was obtained for nearly all patients. A few cases of partly irreversible amblyopia were indicated, but even in these cases largely normal binocular functions were attained. When glasses were suspended, sensory and motor readaptations took place.
Lie
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I
University of Oslo, Institute of Psychology, Norway.
Opheim
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A
D000293:Adolescent; D000328:Adult; D002648:Child; D005139:Eyeglasses; D005403:Fixation, Ocular; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D055095:Optics and Photonics; D014786:Vision Disorders / Q000601:surgery / Q000628:therapy*; D014792:Visual Acuity