The Mars Letter Contrast Sensitivity Test USER MANUAL

1 C  0.04 H  0.08 V  0.12 O  0.16 S  0.20 N  0.24 2 D  0.28 S  0.32 Z  0.36 N  0.40 R  0.44 K  0.48 3 N  0.52 D  0.56 R  0.60 H  0.64 V  0.68 Z  0.72 4 C  0.76 S  0.80 O  0.84 N  0.88 K  0.92 H  0.96 5 K  1.00 N  1.04 V  1.08 D  1.12 S  1.16 R  1.20 6 Z  1.24 R  1.28 D  1.32 K  1.36 H  1.40 O  1.44 7 H  1.48 Z  1.52 C  1.56 V  1.60 R  1.64 K  1.68 8 S  1.72 C  1.76 Z  1.80 D  1.84 V  1.88 O  1.92 Log CS value at final correct letter: Number of errors prior to final correct letter x 0.04 = Subtract