Rajavi Zhale, Sabbaghi Hamideh, Amini Sharifi Ebrahim, Behradfar Narges, Kheiri Bahareh
Ophthalmic Epidemiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Department of Ophthalmology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
J Curr Ophthalmol. 2019 Aug 14;31(4):426-431. doi: 10.1016/j.joco.2019.07.004. eCollection 2019 Dec.
PURPOSE: To compare the effect of amblyopia therapy on cases who received interactive binocular treatment (I-BiT™) with those who received standard patching of the dominant eye with placebo I-BiT™. METHODS: In this randomized clinical trial, 38 unilateral amblyopic children (3-10 years old) were studied. All unilateral amblyopic children who had best corrected visual acuity (BCVA) worse than 0.30 logMAR or a difference of two Snellen lines of BCVA between their two eyes were included, and children who did not complete at least 75% of amblyopia treatment were excluded from this study. Eventually, a total of 19 and 21 subjects were included in case and control groups, respectively. Cases played I-BiT™ games, while controls had standard patch therapy and played with placebo I-BiT™ games, both for one month. All subjects were examined at baseline and after one-month therapy. RESULTS: BCVA improved significantly in both groups after one-month treatment (case: = 0.003, control: < 0.001), while in comparison with each other, there was not any difference between them ( = 0.52). Although stereopsis improved in the case ( < 0.001) and control ( < 0.001), there was no significant difference between them pre and post-therapy. Our children played games for about 6 h total during one month in both groups, and their compliance was 87.5% and 76% in cases and controls, respectively. Two children were excluded due to their lower compliance of playing I-BiT™ games (n = 38). CONCLUSIONS: I-BiT™ game and patching with placebo game had similar BCVA improvement in amblyopic children after one-month treatment. It is suggested to conduct further randomized clinical trials with a larger sample size and longer duration of study and assessment of its recurrence.
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