Headache is one of the most common conditions for which adults seek medical attention. According to the World Health Organization, approximately 50% of the adult population globally has experienced a headache at least once over the past year, and it is one of the highest causes worldwide for disability. Patients frequently assume that their headaches are of ophthalmic origin, and this is usually not correct. The majority of headaches do not have an ocular etiology, but certainly this must be ruled out, particularly in patients who have persistent unexplained eye or orbital pain, those who are certain that their discomfort is related to visual activities, and those with associated complaints, such as weight loss, visual changes, jaw claudication, or vertigo.
KeywordsMigraine Tension-type headache Trigeminal autonomic cephalalgias Headache International Classification of Headache Disorders Giant cell arteritis
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