Comparison of traditional training and push‐pull training for the binocular visual function in anisometropic amblyopia

Abstract

Purpose To compare the binocular visual function in anisometropia amblyopia used by Push‐pull Training and traditional training. Methods A total of 64 children with anisometropia amblyopia were enrolled in our study and randomly divided into two groups. After wearing glasses to correct refractive errors in the first three months, the experimental group were treated with push‐pull training, and the the control group were treated with traditional covering method and visual stimulation for a period of 6 months. Then binocular visual functio was measured by synoptophore and random‐dot stereograms(RDS). Results The average visual acuity of the amblyopic eyes in the experimental group was increased 4.2±2.6 lines and the control group was increased 4.52±1.9 lines (p>0.05). The average score of far stereoscopic in experimental group increased 9.3±4.7 points and the control group increased 10.1±5.6 points(P>0.05.)There was no statistical difference between the two groups. The average score of large‐scale RDS stereoscopic in experimental group increased 14.2±9.7points and the control group increased 12.1±7.5points (P<0.05). The average score of the acuity stereopsis RDS in experimental group was increased 19.3±10.2 points and the control group increased 13.5±8.4 points(P<0.05). The average score of cross stereoscopic RDS in experimental group increased 14.9±6.8 points and the control group increased 11.8±5.7 points (P<0.05). The average score of uncross stereoscopic RDS in experimental group increased 17.1±7.9 points and the control group increased13.4±6.6 points (P<0.05). There was statistical difference between the two groups. Conclusions compared with traditional cover training methods, the push‐pull training method can not only achieve the same visual acuity, but also establish better binocular vision function.

Quantitative evaluation of anisometropic amblyopia treatment efficacy by coupling multiple visual functions via CRITIC algorithm

“…Monocular deficits and interocular suppression are two main mechanisms of the formation of amblyopia [30,31]. The push-pull perception can improve both the monocular and binocular visual functions [32]. As one of the vision perceptual learning, push-pull perception can activate visual signal pathways and improve the signal processing ability of the nervous system by taking advantage of the plasticity and transfer characteristics of the cerebral nervous system [12].…”

EEG Measurement for Suppression in Refractive Amblyopia and Push-Pull Perception Efficacy

“…Push-pull perception training, one perceptual learning technology, gives amblyopic eyes intense stimulation and fellow eyes weak stimulation [24], [25]. It recalibrates the interocular balance [26], [27] and establishes better binocular visual function [28]. Push-pull perception provides further evidence for the binocular nature of amblyopia, but how pushpull perception affects cortical activities and which brain areas are the key to recovery are still unclear.…”