Randomised trial of three treatments for amblyopia: Vision therapy and patching, perceptual learning and patching...

Area of Science:

• Ophthalmology
• Neuroscience
• Pediatrics

Background:

• Amblyopia treatment lacks a standardized protocol, despite active vision therapy showing promise.
• This study investigates three treatment approaches for amblyopia in children.

Purpose of the Study:

• To compare the efficacy of three amblyopia treatment protocols.
• To evaluate treatments combining patching with active vision therapy versus patching alone.

Main Methods:

• Fifty-two children (4-12 years) with amblyopia were randomized into three groups: 2-hour patching, monocular perceptual learning, or 2-hour patching plus vision therapy.
• Visual outcomes were assessed after 3 months and compared to a control group with normal vision.

Main Results:

• All treatment groups showed significant improvements in visual acuity (VA) and stereoacuity (STA).
• The patching plus vision therapy group demonstrated the best outcomes, followed by monocular perceptual learning, with patching alone being least effective.
• Improvements were more pronounced in participants with lower baseline VA and interocular differences.

Conclusions:

• Active treatments, specifically vision therapy and perceptual learning, are more effective than patching alone for amblyopia.
• Recommended vision therapy protocols should incorporate monocular accommodative, ocular motility, and central fixation exercises.