压抑膜与传统遮盖治疗轻中度屈光不正性弱视双眼视功能的疗效

目的:观察压抑膜与传统遮盖对轻中度屈光不正性弱视双眼视功能恢复的作用.方法:选取2016-05-01/08-30在我院视光中心确诊并配合治疗的6~8岁30例双眼屈光不正性轻中度屈光性弱视患儿,试验组患儿15例30眼采用Bangerter压抑膜压抑患儿相对好眼,使好眼视力压抑后比差眼视力差半行至一行,对照组患儿15例30眼的相对好眼定量遮盖.两组均每周2次来我院视光中心进行系统视功能康复训练,持续3 mo.结果:试验组与对照组治疗前立体视、弱视眼的调节幅度(amplitude of accommodation,AMP)、 调节灵敏度(accommodating facility,AF)、负相对调节(negative relative accommodation,NRA)、 正相对调节(positive relative accommodation,PRA)、双眼集合近点(convergence near points,NPC)对比差异无统计学意义(P>0.05),两组治疗后立体视、AMP、AF、PRA、NPC差异有统计学意义(P<0.05),NRA差异无统计学意义(P>0.05).结论:轻中度屈光不正性弱视患儿使用压抑膜与传统遮盖治疗在双眼视功能的对比中,Bangerter压抑膜组双眼立体视、AMP、AF、PRA、NPC等各项视功能数据明显优于传统遮盖组,NRA与传统遮盖治疗无差异.

Efficency of Bangerter filters and conventional covering for binocular vision in patients with mild-to-moderate ametropic amblyopia

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.