近视性和远视性弱视视功能发育临床观察

Effect of binocular vision in myopia and hyperopia amblyopia

目的:了解近视性弱视和远视性弱视对双眼视功能发育的影响。方法:对50例经治疗后双眼矫正视力均达0.9以上的弱视患儿行双眼视功能检查。测量同时视、融合范围及远近立体视。根据患儿的屈光状态将患儿分为A组(近视组)20例、B组(远视组)30例。比较A、B两组同时视、融合和立体视差异。结果:近视组中存在同时视的15例(75%),集合融合范围正常的6例(30%),分开融合范围正常的16例(80%),有正常远立体视的7例(35%),有正常近立体视的6例(30%)。远视组中存在同时视的26例(87%),集合融合范围正常的7例(23%),分开融合范围正常的20例(67%),有正常远立体视的15例(50%),有正常近立体视的7例(23%)。50例患儿中存在正常远立体视的为22例(44%),正常近立体视13例(26%)。同时视在两组患儿之间的差异无统计学意义(χ2=0.454,P>0.05);集合性融合和分开性融合在两组患儿之间的差异也无统计学意义(χ2=0.565,P>0.05;χ2=0.740,P>0.05);远近立体视两组患儿差异也均无统计学意义(χ2=0.195,P>0.05;χ2=0.295,P>0.05)。结论:近视及远视因素对弱视患儿双眼视功能发育影响的差异不显著。弱视治疗后矫正视力正常的患儿短期内双眼视功能仍未完全恢复正常。

AIM ： To investigate the visual function in myopia and hyperopia am blyopia whose corrected visual acuity have recovered to normal.METHODS： The visual function of children（ 50 cases）with am blyopia eyes by binocular vision correction after treatment above 0. 9 was checked. The simultaneous perception,fusion range and distance stereopsis were measured. According to the refractive condition of the children who were divided into group A（ myopia,20cases） and group B（ hyperopia, 30 cases）. The statistically difference of simultaneous perception,fusion function and stereopsis in tw o groups was analyzed. RESULTS： Fifteen（ 75%） and twenty- six（ 87%）children got the sim ultaneous perception in group A and group B respectively,and the differences between two groups were not significant（ χ^2= 0. 454,P〉0. 05）. Group A had six children（ 30%） and group B had only seven children（ 23%） with the norm al aggregative fusion range,two groups did not show any difference（ χ^2= 0. 565,P〉0. 05）. Respectively sixteen（ 80%）,and twenty children（ 67%） had the normal divided fusion range in group A and group B, the recovery rate did not show any significant difference（ χ^2= 0. 740,P〉0. 05）. Fifteen（ 50%）and seven（ 35%） patients acquired the far stereoscopic vision in group B and group A respectively,the recovery rate also did not show any significant difference. Normal distance stereopsis of 50 cases had 22 cases（ 44%）,and normal near stereopsis of 50 cases had 13cases（ 26%）Seven（ 23%） and 6（ 30%） children got the normal near stereoscopic vision in group B and group A respectively,and the recovery rate did not show any significant difference（ χ^2=0. 195,P〉0. 05; χ^2=0. 295,P〉0. 05）.CONCLUSION： After amblyopia treatment,although the children got the normal visual acuity,the binocular vision still can not completely normal in the short term. Myopia and hyperopia factor will not produce significant effect on binocular vision development.