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Published on: January 14, 2020

A randomized trial of increasing patching for amblyopia.

1, David K Wallace, Elizabeth L Lazar

  • 1Duke University Eye Center, Durham, North Carolina.

Ophthalmology
|June 13, 2013
PubMed
Summary
This summary is machine-generated.

Increasing daily patching time for children with stable residual amblyopia from 2 to 6 hours significantly improves visual acuity (VA). This enhanced patching regimen offers a greater improvement in amblyopic eye VA over 10 weeks compared to continuing 2-hour patching.

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The Measurement and Treatment of Suppression in Amblyopia
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Published on: December 14, 2012

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Last Updated: May 10, 2026

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Published on: January 14, 2020

The Measurement and Treatment of Suppression in Amblyopia
08:34

The Measurement and Treatment of Suppression in Amblyopia

Published on: December 14, 2012

Area of Science:

  • Ophthalmology
  • Pediatric Medicine
  • Vision Science

Background:

  • Residual amblyopia can persist in children despite refractive correction and patching.
  • Strabismus and anisometropia are common causes of amblyopia.
  • Optimizing treatment duration is crucial for amblyopia management.

Purpose of the Study:

  • To evaluate the effectiveness of increasing daily patching time from 2 to 6 hours.
  • To assess visual acuity (VA) improvement in children with stable residual amblyopia.
  • To compare outcomes between extended and standard patching durations.

Main Methods:

  • Prospective, randomized, multicenter clinical trial.
  • 169 children aged 3 to <8 years with stable residual amblyopia.
  • Random assignment to 2 hours or 6 hours of daily patching for 10 weeks.

Main Results:

  • The 6-hour patching group showed an average improvement of 1.2 lines in amblyopic eye VA, compared to 0.5 lines in the 2-hour group.
  • A statistically significant difference in mean VA improvement (0.6 lines) favored the 6-hour group (P = 0.002).
  • 40% of children in the 6-hour group achieved a 2-line or more improvement versus 18% in the 2-hour group (P = 0.003).

Conclusions:

  • Increasing daily patching to 6 hours is more effective than 2 hours for improving VA in stable residual amblyopia.
  • Extended patching duration offers a significant benefit when VA plateaus with standard treatment.
  • This strategy provides a valuable option for enhancing visual outcomes in pediatric amblyopia.