In this modern world everywhere we can see each and every individual either with a computer or mobile phone, this may make many works simpler, time saving, etc but on the other side there is also certain ill effects, among that one of the major problem that is increasing silently is “Computer Vision Syndrome.” It is not a single problem but it is a group of problems associated with it and it may also vary from each individual. The study showed that there was significant improvement at p<0.001 in the post test knowledge. It also shows that there is no association between the selected demographic variables and the post test knowledge level. Thus the video teaching programme imparted to the medical coding trainees on Computer Vision Syndrome had an effect on their knowledge and had a great potential for accelerating the awareness among medical coding trainees.