Table 1 Normal range for contrast sensitivity test and FM 100 scores estimated from a control group

0.2 cpd

0.5 cpd

0.8 cpd

1 cpd

2 cpd

4 cpd

6 cpd

10 cpd

15 cpd

20 cpd

30 cpd

UTL

1.61

2.34

2.33

2.59

2.73

2.75

2.81

2.49

2.09

1.71

1.03

1.88

LTL

0.53

1.1

1.31

1.45

1.73

1.78

1.39

0.96

0.5

0.2

0.23

1.73

Number of eyes with impaired results compared with the tolerance intervals

Contrast sensitivity (log ₁₀ )

FM 100 score (log ₁₀ )

0.2 cpd

0.5 cpd

0.8 cpd

1 cpd

2 cpd

4 cpd

6 cpd

10 cpd

15 cpd

20 cpd

30 cpd

DM2 NR

2

1

4

4

5

11

9

5

6

9

0

26

DM2 WR

0

1

3

2

7

11

7

6

4

6

0

18