سبب شناسي آتروفي عصب بينايي در 100 بيمار مراجعه كننده به درمانگاه نوروافتالمولوژي بيمارستان فارس

An Etiological Study of Optic Atrophy

Purpose: To assess the etiologic profile of optic atrophy in patients referred to Farabi Medical Center. Methods: In this descriptive study, exisiting data of 100 cases of optic atrophy were studied. The etiology of optic atrophy were divided into eight groups based on symptoms and paraclinic studies: compressive, ischemic, traumatic, toxic, hereditary, inflammatory, miscellaneous, and undetermined. Results: The most common cause of optic atrophy was compression (33%) and the most common compressive lesion was pituitary adenoma (33% of all compressive lesions). The second prevalent etiology were ischemic lesions (25%) with ischemic optic neuropathy as the main disease entity (96% of all ischemic lesions). Compressive lesions were the most common cause of bilateral optic atrophy and ischemic lesions were the most common cause of unilateral optic atrophy. Conclusion: Compressive lesions are the most common cause of optic atrophy under 40 years age and ischemic lesions are the most common cause above 40 years age.