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Related Experiment Videos

Long-term changes in visual acuity and refractive error in amblyopes.

Robert P Rutstein1, David A Corliss

  • 1School of Optometry, University of Alabama at Birmingham, 1716 University Boulevard, Birmingham, AL 35294-0010, USA. rrutstein@icare.opt.uab.edu

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|July 15, 2004
PubMed
Summary

Long-term follow-up of amblyopia treatment shows visual acuity regression in the amblyopic eye for strabismic and anisometropic types, while the non-amblyopic eye improves. Isometropic amblyopia shows significant visual acuity improvement over time, with a general myopic shift observed in all types.

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Area of Science:

  • Ophthalmology
  • Vision Science
  • Pediatric Ophthalmology

Background:

  • Amblyopia, or lazy eye, is a developmental disorder affecting visual acuity.
  • Understanding long-term outcomes is crucial for managing amblyopia.
  • Strabismic, anisometropic, and isoametropic amblyopia represent different etiological categories.

Purpose of the Study:

  • To analyze long-term changes in visual acuity (VA) and refractive error.
  • To compare outcomes across strabismic, anisometropic, and isoametropic amblyopia types.
  • To assess post-treatment VA and refractive error stability.

Main Methods:

  • Retrospective review of 61 patients treated between 1983-1993.
  • Inclusion criteria: amblyopia type, minimum 4-year follow-up post-treatment.

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  • Data collected: best-correctable VA and spherical equivalent refractive error (pretreatment, posttreatment, long-term follow-up).

    • Main Results:

    • Strabismic amblyopia (n=22): VA improved post-treatment but regressed slightly long-term.
    • Anisometropic amblyopia (n=26): Similar VA changes, with slight regression in the amblyopic eye.
    • Isometropic amblyopia (n=13): Significant long-term VA improvement; all types showed a myopic shift in refractive error.

    Conclusions:

    • Visual acuity shows a non-significant regression in the amblyopic eye for strabismic and anisometropic amblyopia long-term.
    • The non-amblyopic eye demonstrates slight improvement over time.
    • Isometropic amblyopia exhibits significant VA improvement, and a myopic shift is common across all types.