Colour Vision Deficiency among Failed Candidates for Driving License in Sabah

Introduction: Good visual acuity (VA) coupled with the ability to discriminate colours and having a sufficiently wide field of view are factors needed for safe driving. This study aimed to determine the types of colour vision deficiency (CVD) among failed candidates for driving license and to identify the accuracy of the Road Transport Department (RTD) screening tests in detecting those who have poor VA and CVD in Sabah.