BACKGROUND-One of the most common cause for headache among patients attending ophthalmic OPD is uncorrected refractive errors. The purpose of this study is to evaluate the role of refractive errors in the etiology of headache. MATERIALS AND METHODS-450 patients with headache attending eye OPD in GMC Jammu were included in the study. It was a crosssectional study. They were subjected to visual acuity examination, refraction, slit lamp examination, fundus examination and retinoscopy wherever required RESULTS- Out of the total patients 40% were males and 60% were females. 41.1% of the patients had astigmatism, 31.1% of the patients had hypermetropia. chronic type of headache was more common (46.7%) followed by subacute 33% and acute in 20.3%. We found that headache was seen more commonly in frontal area (57.8%) followed by occipital (32%) and combined (10.2%). The most common type of refractive error in these patients was astigmatism 41.1% followed by hypermetropia 31.1% followed by presbyopia 16.7% followed by myopia 11.1%. Amount of refractive error between 1.25D -1.5D was seen in 40% of the patients, followed by 1.5 -2D seen in 24.4%, followed by refractive error less than 1.25D seen in 20 % of the patients, followed by refractive error more than 2D seen in 15.6% of the patients. After optical correction there was improvement in headache of patients. CONCLUSION- Refractive errors play a major role in the Etiology of headache, which can be managed by appropriate correction of these refractive errors. So, early Diagnosis and adequate treatment is important.