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
- child health (paediatrics)
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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.