The primary aim of this study is to find the awareness of colour blindness among 100 nurses in a hospital. Colour blindness or colour vision deficiency is the decreased ability to see and distinguish colours. It is one of the most common inherited disorders in human beings. It can also be acquired. It occurs due to the disorder or defect in the development of one or more of the three sets of colour sensing cones of the eye. There is no cure for colour vision deficiency. This study is a

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... based descriptive cross-sectional study. Ethical clearance for the study was obtained from the institutional review board. A structured questionnaire on awareness of colour blindness was prepared. This was given to 100 nurses in the hospital. The data obtained were analysed with the help of a statistician. The result was that the nurses knew what colour blindness is, but they did not know much about the aetiology, transmission, treatment of the disorder. The nurses should be made more aware of colour blindness.