Aims & Objectives: - To study the prevalence of the Refractive Errors among the patients attending O.P.D. of Assam Medical College & Hospital, Dibrugarh. Materials & Methods: - This is a Prospective Study conducted on 1,000 participants from September ,2023 to October, 2024.The study was executed based on the OPD procedures, Darkroom procedure, Ophthalmic Examinations and so on. Result: - A total numbers of 1,000 patients were enrolled in the study, out of which 414 (41.4%) patients were having myopia,198 (19.8%) had astigmatism, 104 (10.4%) having combined myopia and astigmatism, 102 (10.2%) patients had hypermetropia and 42 (4.2 %) patients were having combined hypermetropia and astigmatism. The prevalence of Refractive Errors was observed to be elevated in the 20-29 years of age group. The prevalence of Refractive Errors was observed to be elevated among the males. Conclusions: - The prevalence of Refractive Errors is greater in males than in female and myopia is the most type of refractive error in this study.