Table 1: Visual parameters of new drivers in Malaysia.

Parameters	Total subjects	N fail (False negative)	N pass (True negative)	% Fail	Negative predictive value
Visual Acuity	3717	250	3467	6.7	93.3
(VA less than 0.3 LogMAR)
Colour Vision	3717	82	3635	2.2	97.8
(Fail more than 4 Ishihara Plates)
Perimetry	2094	36	2058	1.7	98.3
(Horizontal visual field less than 120°)