A clinical trial at a Beijing hospital found that 28 out of 30 patients underwent good results after a ten-day treatment course.
Dr. Zhong-Lin Lu, study author and neuroscientist at the University of Southern California said that after the training, patients started using both eyes, some got 20/20 vision and that by clinical standards, they are completely normal.
The training involves simple task designed to train the eyes to look at fine details called perceptual learning.
Amblyopia, or lazy eye, is a disorder of the visual system that is characterized by poor or indistinct vision in an eye that is otherwise physically normal, or out of proportion to associated structural abnormalities.
Dennis Levi, dean of optometry at the University of California in Berkeley said that though this therapy shows promise, it has not been established in a clinical setting to be effective.
"It's clear that perceptual learning in a lab setting is effective. However, ultimately, it needs to be adopted by clinicians, and that will probably require multi-center trials," Levi added.
