The clinical study of perceptual learning based on the internet on juvenile aged 9~13 with anisometropic am-blyopia contrast sensitivity

doi:10.3969/j.issn.1674-3806.2015.01.03

Abstract：Objective To apply systematic training of the perceptual learning based on internet for juvenile anisometropic amblyopia, understand and analyze the change in contrast sensitivity before and after the training. Methods Two hundred and sixteen juvenile patients ( 216 eyes ) with anisometropic amblyopia were chosen and trained with the perceptual learning system based on internet and the traditional combined training.The specific train-ing programs were designed by doctor based on the patient initial vision, degree of severity in low vision and advance-ment during training process.The perceptual learning group received the visual trainings, such as improving visual noise,contour integration and position noise;the traditional combined training group received the visual trainings like red lights and fine vision training.Based on these two methods, the change in contrast sensitivity was analyzed before and after 3 months, 6 months, 9 months and 12 months′training.Results The CS Means of amblyopia from the per-ceptual learning group and the traditional combined training group decreased in each spatial frequency.The entire 3~18 c/d frequency difference had no statistical significance between two groups before treatment(P>0.05).After the treatment, the entire CS(3~18 c/d) frequency difference in the perceptual learning group was higher than that in the traditional combined training group.The difference was statistically significant(P<0.05).After the treatment, the entire 3~18 c/d frequency difference in the traditional combined training group was improved significantly( P<0.01).Conclusion The perceptual learning based on internet can provide intensive,active,feedback and individual visual stimulus, thus being more effective than the traditional combined treatment for anisometropic amblyopia juvenile aged 9~13 who are out of vision sensitive developmental period.The new treatment can achieve better result in pro-moting the contrast sensitivity than the traditional combined treatment, thus providing a new feasible way for amblyo-pia clinical therapy.