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Effect and sustainability of part-time occlusion therapy for patients with anisometropic amblyopia aged ≥8 years
  1. D J Hwang,
  2. Y J Kim,
  3. J Y Lee
  1. Department of Ophthalmology, Hallym University College of Medicine, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
  1. Correspondence to Dr Joo Yeon Lee, Section of Pediatric Ophthalmology and Strabismus, Hallym University Sacred Heart Hospital, 896 Pyeong-chon-Dong, Dong-an-Gu, Anyang-City, Gyeong-gi-Do, 431-070, Republic of Korea (South Korea); ljy690725{at}hanmail.net

Abstract

Aims To study the effect and long-term sustainability of part-time occlusion therapy for anisometropic amblyopia after 8 years of age.

Methods A total of 41 anisometropic amblyopes aged ≥8 years were analysed. In six patients, best-corrected visual acuity (BCVA) of amblyopic eye improved more than two lines within 2 weeks of full-time spectacle wear. The remaining patients were assigned to perform part-time patching during out-of-school hours. Long-term results were assessed in patients who were observed over 1 year after the end of the treatment.

Results Among 35 patients, four dropped out, refusing further treatment, and one changed to atropine penalisation. The part-time patching schedule was completed in 30 patients. 90% of patients (27/30) complied well. Mean BCVA in the amblyopic eye improved significantly (p<0.001), and 96.7% of patients (29/30) achieved the final BCVA of 0.1 logMAR or better. In long-term results, 87% preserved the BCVA of 0.1 logMAR or better. None of four dropouts achieved the BCVA of 0.1 logMAR or better in long-term results even on the continuous spectacle wear.

Conclusions The part-time occlusion treatment in school-aged amblyopes, which had been carried out after school hours, was successful and the effect was sustained in most cases.

  • Anisometropic amblyopia
  • ≥8 years
  • part-time occlusion therapy
  • vision
  • child health (paediatrics)
  • Accepted 29 November 2009

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Footnotes

  • Summary of this study was presented at the 32nd Meeting of the European Strabismological Association in September 2008.

  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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