Number and Distribution of Causes of Optic Neuropathy in Patients Evaluated at a Tertiary Care Center (.pdf)

Optic nerve dysfunction is among the most common causes of vision loss in the industrialized world. The range of diseases that cause optic neuropathies is quite large, although the great majority of optic neuropathies are caused by a relatively small number of etiologies. The purpose of this study was to assess the total number and distribution of causes of optic neuropathies for patients who were evaluated at a tertiary care center, and to determine the frequency of patients who had optic neuropathies without identifiable cause despite current state-of-art diagnostic studies.