近视眼RNFL光学相干断层扫描测量及相关因素分析

目的 探讨近视眼视网膜神经纤维层(RNFL)厚度的变化特点及相关影响因素.方法 将行准分子激光原位角膜磨镶术(Lasik)术前检查的患者109例213眼按近视度数的高低分为3组低度近视组51例,中度近视组91例,高度近视组71例.分别测量3组患者各个象限的RNFL厚度、视盘面积、盘沿面积、杯盘面积比、眼压、瞳孔直径,所有数据采用SPSS13.0统计软件进行分析.结果 低度近视组患眼上象限RNFL厚度(137.216 4-19.014)μm与中度近视组患眼上象限RNFL厚度(136.549 4-18.507)μm比较差异无统计学意义(P＞0.05),其余各近视组患眼的各象限RNFL厚度差异均有显著统计学意义(均P＜0.01).上、下、鼻象限RNFL厚度与近视度数呈正相关(r=-0.259、-0.316、-0.183.均P＜0.01).颞侧RNFL厚度与近视度数呈负相关(r=0.318,P＜0.01);RNFL平均厚度与眼压、瞳孔直径无相关性(r=-0.088、0.050,均P＞0.05),与视盘面积、盘沿面积呈正相关(r=0.165、0.262.P＜0.05或0.01),与杯盘面积比呈负相关(r=-0.140,P＜0.05).结论 上、下、鼻象限RNFL厚度及平均厚度均随近视度数的增高而变薄,颞侧RNFL厚度随近视度数增加而逐渐增厚.RNFL平均厚度随着视盘面积、盘沿面积的增大而增厚,随着杯盘面积比增大而变薄,与眼压、瞳孑L直径无显著相关性.

The measurement of retinal nerve fiber layer thickness in 213 myopia using optical conhenrence tomography and its associated factors

Objective To study the characteristics of retinal nerve fiber layer(RNFL)thicknes and its associated factors. Methods According to the myopia degree 213 subjects were divided into 3 groups:51 subjects were in slight myopia group,91 subjects were in medium myopia group and 71 subjects were in high myopia group. The different quadrants RNFL thickness, diskarea,rimarea cup/disk area ratio ,intraocular pressure (IOP)and pupil diameters in each groups were measured by optical conhenrence tomography(OCT) , noncon...