The coefficient of variation of CCT by OCT was 0.67%, that of minimum-CCT, maximum-CCT, mean-CCT in 2 mm area of central corneal measured by pachymetry map, and by high resolution corneal AC-OCT were 0.23%,0.48%,0.20%, and 0.37%, respectively.

• OCT测量CCT值10次的变异系数为0.；67%25。 AC-OCT角膜地形图中央2mm区域中的最小值、最大值和平均值以及高分辨单线扫描程序测量值的变异系数分别为0