Objective: To find out the prevalence of myopia and hyperopia among the population of KPK. Study Designed: Cross-sectional analytical study. Place and duration of Study: OPD of tertiary care hospitals of KPK, Khyber Teaching Hospital and Hayatabad Medical Complex from 1st July 2020 to 30th June 2021. Methodology: Four hundred patients visiting to OPD of tertiary care hospitals of KPK, Khyber Teaching Hospital and Hayatabad Medical Complex, Peshawar were enrolled. Both male and female were included from 17 to 24 years visiting to the hospital were included. All patients on any medication for any systemic illness like asthma, TB, cardiac issues, liver problems etc. patients suffering from eye disorders like glaucoma, cataract, diabetic retinopathy, uveitis etc. and patients who refused to give consent and uncooperative patients were excluded from the study. Results: Two hundred and seventy seven got normal eye structure, function and vision while 123 got abnormal eye vision, with the frequency of myopia 26.5% (106) while hyperopia was 4.3% (17). Among gender the refractive errors of an eye was found to be 25% in male while 35.5% in female pvalue-0.024. The frequency of refractive error was not significant in age 17, 18, 23 and 24years the refractive error was found to be less as compare to age 19-22 years the refractive errors were seen to be greater. The patients visiting to hospital for eye examination with abnormal refractive errors were 41.1% while the result was significant p value was 0.0001. Genetically 1st order birth got 40% refractive errors while other got 23.5% the results were significant (P=0.004). Conclusion: The prevalence of eye defects related to refractive errors was present among adult population of KPK. Age is not related to refractive errors and refractive errors can be genetically determine. Key words: Myopia, Hyperopia, Refractive errors, Birth order