Ozempic and Vision Loss: What the NAION Research Actually Means for You
In June 2025 the European Medicines Agency confirmed NAION — a rare eye condition causing sudden vision loss — as a very rare side effect of semaglutide. A 2024 JAMA Ophthalmology study of 17,000 patients found 4 to 7 times increased risk. Federal litigation was centralised in December 2025. This article covers what the evidence actually shows, who is most at risk, and the specific symptoms that require immediate emergency eye care rather than waiting for a GP appointment.