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Measurement of retinal nerve fiber layer thickness by scanning laser polarimetry in normal and myopic eyes and affecting factors
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF BIOMEDICAL ENGINEERING
- Issue:
- 3
- DOI:
- 10.3760/cma.j.issn.1674-1927.2007.03.009
- Key Word:
- 视网膜神经纤维层;激光偏振光;屈光度
Abstract： 目的 评价激光偏振光扫描仪(GDxVCC)测量正常人及近视眼视网膜神经纤维层(RN-FL)厚度并分析其与年龄、性别、眼别、屈光度间的相关关系.方法 用GDxVCC测量正常人(正视眼)161例240只眼和近视眼99例167只眼的RNFL厚度.分析正常人性别间、眼别间RNFL厚度的差异.用相关及回归方法分析RNFL与年龄及屈光度之间的相关关系.结果 240只正视眼的RNFL厚度全周平均值(57.31±5.31)μm、上方平均值(69.97 ±7.32)μm、下方平均值(68.67±7.56)μm.男性与女性间平均厚度差异无统计学意义(P=0.062～0.934);左右眼间平均厚度差异无统计学意义(P=0.577～0.689).RNFL平均厚度与年龄呈负相关(r=-0.239,P=0.007),回归方程为RNFLT=-0.073×年龄+60.284.近视患者的RNFL厚度全周平均值(59.62±5.69)μm、上方平均值(71.88 ±7.97)μm、下方平均值(71.80±8.39)μm.RNFL平均厚度与近视度绝对值呈负相关(r=-0.341,P=0.008),同归方程为RNFLT=-0.758×屈光度绝对值+63.038.结论 激光偏振光扫描仪可以精确测量RNFL厚度.正常人RNFL厚度性别间、眼别间差异无统汁学意义.随着年龄的增长,RNFL厚度逐渐变薄.随着近视屈光度的增加,RNFL厚度逐渐变薄.
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