双眼屈光不正性弱视和远视的相关性研究(英文)

Correlation of isoametropic amblyopia and hyperopia

目的:探讨在远视、眼正位儿童中双眼屈光不正性弱视与远视患病率的关系。方法:选取56例两眼对称远视儿童,平均年龄5.5岁,分为两组,双眼远视≤+4.0D等效球镜组和双眼远视>+4.0D等效球镜组。评估两组双眼屈光不正性弱视的患病率,并进行比较。结果:在32例双眼远视≤+4.0D等效球镜组中,4例(13%)患双眼屈光不正性弱视;24例双眼远视>+4.0D等效球镜组中,15例(63%)患双眼屈光不正性弱视。统计学分析显示两组双眼屈光不正的儿童中弱视患病率有显著性差异(P<0.01)。结论:双眼屈光不正性弱视在双眼远视的儿童中并不罕见,尤其是当远视度数大于+4.0D等效球镜时。基于本次调查,双眼远视>+4.0D的儿童有13%～63%发展成两眼屈光不正性弱视。由此说明远视>+4.0D的儿童患两眼屈光不正性弱视的几率较大。

AIM： To evaluate the relationship of isoametropic amblyopia with the prevalence of hyperopia in young children with hyperopia and orthotropia. METHODS： Fifty-six children with a mean age of 5.5 years and bilateral symmetric hyperopia were selected and assigned to the following two groups, children with bilateral hyperopia ≤＋4.0D spherical equivalent （Sph. Eq.） and those with bilateral hyperopia ＋4.0D Sph. Eq.. Prevalence of isoametropic amblyopia was estimated and compared between the two groups. RESULTS： Among the 32 children with bilateral hyperopia of ≤＋4.0D Sph.Eq.,4 children（13%） had isoametropic amblyopia, while among the 24 children with bilateral hyperopia of ＋4.0D Sph. Eq., 15 children（63%） had isoametropic amblyopia. Statistical analysis revealed a significant difference for prevalence of amblyopia between the two groups of isoametropic children （P0.05）. CONCLUSION： Isoametropic amblyopia is not rare among children with bilateral hyperopia, especially when hyperopia is more than ＋4.0D Sph. Eq. On the bases of this investigation, children with bilateral hyperopia ＋4.0D have a risk of 13%-63% developing isoametropic amblyopia. Thus, indicating that children with hyperopia of ＋4.0D have an increased risk of isoametropic amblyopia.