Abstract
To find out incidence of colour blindness in children of Tripoli (North Libya, a survey was conducted using Ishihara’s Colour Plates chart. In the present study randomly six primary school were selected the total number of school children was 1178 (584 boys, 594 girls), age group 6 to 13 years. Among 584 boys, 13 boys were colour blind with the prevalence of 2.22%, and 5 girls were found to be colour blind with the prevalence of 0.84%. The average incidence of colour blindness was 1.52%. Studies on colour blindness in Libya are very few, we hope this student-based investigation is meant to fill a gap in this filed