Background of the Study Diabetes mellitus is a common chronic disease and is a public health problem that affects all level of society. The blind population of India is estimated to be about 9-12 million which is, to be 25% of the world’s blind population. The fact that 25% of the world’s blind population is in India is a strong reason for imparting a proper education to diabetics regarding the prevention of diabetic retinopathy.  Methodology Pre-experimental research design with one group pre-post-test without control group was used with 50 clients through convenient sampling technique. Data was collected by Structured Questionnaire, & analysed using descriptive and inferential statistical in terms of mean, frequency distribution, percentage ‘t’ test and chi-square test.  Results The overall findings reveal that post-test mean knowledge score 30.38 with SD ±2.53 which is 84.3% of total score was more when compared to the pre-test mean knowledge score 18.2with SD ±4.21which is 50,52% of total score. The overall effectiveness of VATP on prevention of diabetic retinopathy, mean score was 12.18 with SD ±1.68 which is 33.83% of total score. Hence it indicates that VATP was effective in enhancing knowledge of clients regarding prevention of diabetic retinopathy.  Interpretation and Conclusion The study proved that VATP on knowledge regarding prevention of diabetic retinopathy among diabetes clients attended diabetic clinic was scientific, logical and cost effective strategy.

Keywords : Effectiveness, Video Assisted Teaching Programme, Prevention of Diabetic Retinopathy, Knowledge, Socio-Demographic Variables.