Table 2.

Visual acuity and Impaired Colour Vision (ICV)

Visual acuity	ICV not present	ICV present
6/12 or better			<0.01*
Yes	658 (78.5)	180 (21.5)
No	2 (18.2)	9 (81.8)
6/18 or better			0.22
Yes	660 (77.8)	188 (22.2)
No	0 (0)	1 (100)
6/24 or better			-
Yes	660 (77.7)	189 (22.3)
No	0 (0)	0 (0)
	Right Only	Left Only
Type of ICV			0.16
Protan	0 (0)	2 (100)
Deutan	7 (70.0)	3 (30.0)
Tritan	49 (64.5)	27 (35.5)

Abbreviations: ICV impaired colour vision

*p < 0.05