By means of statistical analysis, we calculated the mean, SD, the 5th, 50th, 95th percentile of each parameter and analysed the race, gender related differences and discussed the age-related differences,and asymmetry between fellow eyes in normal ONH.

• 并分析ONH参数与种族、性别相关的差异; 与年龄、眼别相关的差异作了探讨。