Uploaded May 2026 | Updated September 2026, 1 week ago
A 65-year-old woman with diabetes, hypertension, and dyslipidemia presented to the ophthalmology clinic with a 14-hour history of painless, progressively worsening, blurry vision in the right eye. Physical examination was notable for a visual acuity of 20/400 in the right eye, with the patient unable to see fingers in the peripheral visual fields. There was a relative afferent pupillary defect in the right eye. What is the primary cause of this condition? Submit your answer or see how others responded at NEJM.org.
#nejm
A 65-year-old woman with diabetes, hypertension, and dyslipidemia presented to the ophthalmology clinic with a 14-hour history of painless, progressively worsening, blurry vision in the right eye. Physical examination was notable for a visual acuity of 20/400 in the right eye, with the patient unable to see fingers in the peripheral visual fields. There was a relative afferent pupillary defect in the right eye. What is the primary cause of this condition? Submit your answer or see how others responded at NEJM.org.
#nejm










