摘要:
目的 探究角膜塑形术对近视儿童立体视觉、动态调节功能影响及控制近视进展机制.方法 选取2015年3月至2016年3月83例(166眼)近视儿童,均接受角膜塑形术治疗,检测比较患儿戴镜前、戴镜6个月后、12个月后的裸眼远视力、裸眼近视力、裸眼近立体视锐度、动态调节功能[调节近点(NP)、调节敏感度(AF)、负相对调节(NRA)、正相对调节(PRA)]及眼压、前房深度、中央角膜厚度、眼轴长度.结果 患儿戴镜12个月后裸眼远、近视力与AF、PRA均高于戴镜6个月后,且戴镜6个月后高于戴镜前,差异有统计学意义(P<0.05);患儿戴镜12个月后裸眼近立体视锐度与NP、NRA均低于戴镜6个月后,且戴镜6个月后低于戴镜前,差异有统计学意义(P<0.05);患儿戴镜前、戴镜6个月后、戴镜12个月后的眼压、前房深度、中央角膜厚度、眼轴长度比较差异均无统计学意义(P>0.05).结论 采用角膜塑形术治疗可明显矫正近视儿童视力,改善其立体视觉,控制近视进展,提高患儿眼部调节功能,且具有较高安全性,短期效果良好.%Objective To investigate the effect of corneal plastic surgery on stereopsis and dynamic regulation of myopia and the mechanism of myopia.Methods From March 2015-March 2016,83 cases (166 eyes) myopia children in our hospital were subjected to corneal plastic surgery.The naked eye distant visual acuity,naked eye near visual acuity,naked eye near stereoscopic sharpness,dynamic adjustment function [Near point of accommodation (NP),adjusted sensitivity (AF),negative relative adjustment (NRA),positive relative adjustment (PRA)] and intraocular pressure,anterior chamber depth,central corneal thickness and axial length of children before wearing glasses,wearing glasses 6 months later,wearing glasses 12 months later were compared.Results The distant and near visual acuity,AF and PRA of naked eyes after 12 months wearing glasses were higher than those after 6 months wearing glasses,and all the above indexes were higher than those before wearing glasses,with statistically significant difference (P < 0.05).After 12 months wearing glasses,the acuity of naked near stereopsis,NP and NRA were lower than those after 6 months wearing glasses,and all the above indexes 6 months after wearing glasses were lower than those before wearing glasses (P < 0.05).There were no significant differences in intraocular pressure,anterior chamber depth,central corneal thickness and axial length between children before wearing glasses,6 months after wearing glasses and 12 months after wearing glasses (P > 0.05).Conclusions Corneal plastic surgery can significantly correct the visual acuity of children,improve their stereovision,control the progression of myopia,improve the ocular adjustment function of children,and its safety is high.