低对比度视力 Sloan test (log MAR)

对照组

NDR组

轻度NPDR组

P值

6%

0.225 ± 0.004

0.39 ± 0.054^a

0.520 ± 0.010^ab

<0.001

4.30%

0.440 ± 0.061

0.533 ± 0.048^a

0.517 ± 0.058^a

<0.001

3.20%

0.585 ± 0.066

0.684 ± 0.051^a

0.667 ± 0.062^a

<0.001