AIM: To observe the efficency of Bangerter filters and conventional covering for binocular vision in patients with mild-to-moderate ametropic amblyopia.

METHODS: We selected 30 children aged 6-8 years with mild-to-moderate ametropic amblyopia diagnosed in our hospital from May 1 to August 30 2016. There were experimental group whose relatively good eye were covered with Bangerter filters to make the good eye eyesight depressed after contrast poor eyesight in one line and 15 cases(30 eyes)as control group whose relatively good eye were quantitatively covered. Both groups went to our center for systemic visual function rehabilitation twice per week for 3mo.

RESULTS: Stereoscopic vision, amplitude of accommodation(AMP), accommodating facility(AF), negative relative accommodation(NRA), positive relative accommodation(PRA), convergence near points(NPC)before treatment between experimental group and the control group had no significant difference(P>0.05). Stereoscopic vision, AMP, AF, PRA and NPC of the two groups were improved after treatment(P<0.05), while NRA were not significantly improved(P>0.05).

CONCLUSION: Children with mild-to-moderate ametropic amblyopia treated with Bangerter filters get better stereoscopic vision, AMP, AF, PRA and NPC than those of control group, while there is no difference on NRA.