Nonarteritic Anterior Ischemic Optic Neuropathy following Herpes Zoster Ophthalmicus and Steroid-Related Intraocular Pressure Spike

A 61-year-old woman presented with sudden vision loss from a left anterior optic neuropathy in the context of severely elevated intraocular pressure after starting topical steroids for anterior uveitis related to herpes zoster ophthalmicus (HZO). The strong temporal relationship between the vision loss and elevated IOP suggested the vision loss was related to nonarteritic anterior ischemic optic neuropathy (NAION). Anterior chamber paracentesis...