Prevalence of Migraine in Patients with Normal Tension Glaucoma
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 3
Abstract
Normal-tension glaucoma (NTG) is a form of open-angle glaucoma characterized by glaucomatous optic neuropathy in patients with IOP measurements consistently lower than 21 mmHg. The etiology of NTG is unclear. Contributing factors may include vasospastic events, hypoperfusion, nocturnal hypotension, hypercoagulability and increased blood viscosity, and genetic factors. NTG has also been associated with migraine headaches, Raynaud’s phenomenon, diffuse cerebral ischemia and various autoimmune disorders.Vasospasm associated with migraine has been recognized as a risk factor for NTG. We did a retrospective comparative study between patients diagnosed with POAG and NTG(50 patients in each group) to study the prevalence of migraine in patients with NTG and to establish migraine as a risk factor for normal tension glaucoma. A history of migraine was obtained from all patients either at present or previously. The study showed an increased prevalence of migraine in patients with Normal tension glaucoma stating a definite association.42% of patients with normal tension glaucoma gave a history of migraine at some point in their lives though presently they were symptom free with a female preponderance of 30% as compared to only 11% among patients with open angle glaucoma. A detailed study of other causes of ocular vasopasms may be needed to prove a definitive etiology.
Authors and Affiliations
Dr. Vikram Chellakumar
Keywords
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