Anisometropia Amblyopia Improved by Perceptual Learning and Patching

Tri-Service General Hospital

Status and phase

Completed

Phase 3

Conditions

Anisometropic Amblypia

Treatments

Procedure: computer program and patching

Study type

Interventional

Funder types

Other

Identifiers

NCT00498641

094-05-0112

Details and patient eligibility

About

To compare the effects of perceptual learning with patching on improving visual acuity and contrast sensitivity in payient with anisometropic amblyopia.

Full description

Patients with anisometropic amblyopia were randomized to patching or perceptual learning group. Corrected amblyopic logMAR visual acuity and contrast sensitivity function were measured at four-weekly intervals until visual acuity stabilized or amblyopia resolved. Improvement in visual acuity, contrast sensitivity, and the resolution of amblyopia were compared between groups.

Sex

All

Ages

3 to 55 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

Anisometropia without strabismus
An interocular acuity difference of at least 0.2 logMAR in children (3-7 years of age) or in older children and adult patients without a history of patching or atropine penalization
All patients wore their spectacle at least one year

Exclusion criteria

A history of prior spectacle correction
A history of patching or optical penalization
The existence of an ocular disease that could contribute to decreased visual acuity
Learning difficulties
The presence of strabismus