视力和双眼视力差异对弱视患儿立体视形成的影响  

The effects of visual acuity and interocular acuity differences on stereopsis of the amblyopic children

作　　者：马萍萍[1] 徐艳春[1] 巴秀凤[1] 魏晓雯[1] 

机构地区：[1]中国医科大学附属一院眼科,110001

出　　处：《中国斜视与小儿眼科杂志》2006年第4期164-167,共4页Chinese Journal of Strabismus & Pediatric Ophthalmology

摘　　要：目的探讨双眼视力差异及视力对弱视患儿立体视形成的影响。方法选取4～14岁不伴斜视和其他眼病的弱视患儿160例为试验对象,屈光矫正后进行定性、定量立体视功能检查。比较不同双眼矫正视力差异及视力水平对立体视功能的影响。结果双眼矫正视力差<2行与≥2行组间立体视差异具有显著性,χ2=39.571(P<0.01);双眼矫正视力差≥3行组均无中心凹立体视。106例双眼矫正视力差<2行的患儿中,视力≥0.6组与视力<0.6组间立体视差异具有显著性,χ2=23.910(P<0.01)。视力≥1.0治愈组与正常对照组比较,中心凹和黄斑立体视差异有显著性,χ2=8.617(P<0.01)。结论双眼视力差异大及视力低下是影响立体视形成的重要原因。Objective To discuss the effect of visual acuity VA and interocular acuity differences （IOAD） on stereopsis of the amblyopic children. Methods 160 cases of amblyopic children patients aged from 4 to 14 years were enwiled in this study. The patients were tested stereopsis and stereoacuity with the best corrected vision by using the Phoropter and Yan＇s random-dot stereograms. Results The difference was significant in stereopsis between lOAD ≥2 lines and 〈 2 lines （P〈 0.01）. The amblyopic children with IOAD≥3 lines had no central fuvea stereopsis. In amblyupic children of lOAD 〈 2 lines the difference was significant between groups of VA ≥0.6 and 〈 0.6 （P 〈 0.01）. All the amblyupic children with VA≥0.6 got stereopsis. In the group of children whose amblyupic eye were cured the central fovea stereopsis could not reach to the level of normal group （P 〈 0.01）. Conclusion lOAD and low VA are important factors to interfere with the development of stereopsis.

关 键 词：弱视 视力 立体视 

分 类 号：R777.44[医药卫生—眼科]