低对比度视力 Sloan test (log MAR)

对照组

NDR

轻度NPDR组

P值

6%

0.225 ± 0.079

0.390 ± 0.145^a

0.520 ± 0.101^ab

<0.001

4.30%

0.355 ± 0.089

0.475 ± 0.137

0.660 ± 0.082^ab

<0.001

3.20%

0.485 ± 0.075

0.615 ± 0.16

0.835 ± 0.075^ab

<0.001