You have no items in your shopping cart.
ABSTRACT
Colour vision defects (CVD) are hereditary conditions that affect the ability to perceive colours accurately. The effect of colour vision defects in the academic and social activities of affected persons has been reported. Hence, understanding the prevalence of colour vision defects is essential for healthcare planning and accommodating individuals with these conditions in various aspects of life including education and employment. The aim of this research was to determine the prevalence of colour vision defects among school children aged 12 to 14 years in Uselu community, Egor local government area of Edo state, Nigeria. A total of two hundred (200) school children aged 12-14 years with mean age of 12.8 ± 0.8 years who met the inclusion criteria participated in this study. Monocular and binocular visual acuity were assessed using Snellen chart at 6m while colour vision was assessed using the Farnsworth-Munsell D-15 panel at 50cm. An interviewer-administered questionnaire was used to assess participants’ difficulties with colour-related activities. Results showed that three (3) participants had colour vision defects (2 males and 1 female), giving a prevalence rate of 1.5%. out of these three participants, two (2) had Protan (67%), while one (1) participant had Deutan defects (33%), there was no Tritan defect reported. Relationship between sex and colour vision diagnosis as well as sex and type of colour vision defects were not statistically significant (P=0.584). Majority of the participants with colour vision defects had more difficulties with colour-related activities than those with normal colour vision. In conclusion, the results of this study were consistent with past researches done in Nigeria. This research shows that early assessment and diagnosis of colour vision defects is crucial for academic and social development.
Keywords: colour vision, CVD, colour vision deficiency
