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Table 2 Description of the Farnsworth D-15 Dichotomous Color Blindness Test

From: Association between cognition and color discrimination among Lebanese patients with schizophrenia

 

N (%)

Type of color blindness

 

 None

36 (28.3%)

 Protan

50 (39.4%)

 Deutan

18 (14.2%)

 Tritan

23 (18.1%)

Severity of color blindness

 

 None

36 (28.3%)

 Slight

61 (48.0%)

 Moderate

27 (21.3%)

 Severe

3 (2.4%)

 

Mean

Confusion Angle

19.94 ± 62.50

Major Radius

18.44 ± 5.70

Minor Radius

10.66 ± 4.27

Total Score of Error

21.45 ± 6.64

Selectivity Index

1.85 ± 0.60

Confusion Index

2.18 ± 2.33