What question did this study set out to answer?

The research aims to determine if biofeedback training can improve visual acuity and reduce myopia.

March 21, 2026

Biofeedback Training of Visual Acuity and Myopia

Key Points

The research aims to determine if biofeedback training can improve visual acuity and reduce myopia.
Performed biofeedback training using the Accommotrac Vision Trainer
Utilized a single-subject research design with nine subjects
Measured changes in visual acuity and refractive error
Some subjects showed improvements in visual acuity
No overall change in refractive error was observed
Uncertainty about whether improvements were solely due to biofeedback or learning effects

Abstract

ABSTRACT Biofeedback training of accommodation was performed with nine subjects using the Accommotrac Vision Trainer to attempt to improve visual acuity (VA) and reduce myopia. A single‐subject research design was used. Improvements in VA were seen with some subjects, but it is not clear whether the improvements were due to the biofeedback training alone, or to a learning effect observed during repeated measurements of VA. There was no change in refractive error. Implications for future research are discussed.

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