Refractive errors are prevalent among the patients presenting in optical hospitals and companies and contribute to adverse health outcomes such as blindness and visual impairment. Refractive error is a global health problem with a significant number of people affected and causing blindness. Uncorrected refractive errors are also costly to the global health sector due to their negative ou tcomes.Refractive error in hospitals is prevalent among the patients attending optical institutions, and when left uncorrected, it contributes to visual impairment and blindness globally. According to Natung, et al. the global estimate of the aggregate population of persons across all ages that are affected with visual impairments is approximately 253 million, out of which 36 million developed to become blind