A Higher Prevalence of Diabetes Mellitus Among Patient with Nonarteritic Ischemic Optic Neuropathy: A Higher Prevalence of Diabetes Mellitus Among Patient with Nonarteritic Ischemic Optic Neuropathy. Iraqi Natl J Med. 2022;4(1):24-30. doi:10.37319/IQNJM.4.1.3