Post by @stevencyrmd

He said it happened like a switch. “Boom. Lights out.” A Massachusetts highway worker and softball coach was on a GLP-1 for about a year to get his A1C down. Then one Saturday he woke up with a speck in his vision. Two weeks later, both eyes were dark. Permanent. The diagnosis: NAION — an eye stroke. No pain. No warning. That story is real. The panic version of it is not. Researchers have found a signal: semaglutide (Ozempic/Wegovy) is associated with a higher rate of this rare optic-nerve injury in some observational studies — roughly double the risk versus other diabetes meds. Europe and the UK now list it as a very rare side effect. The U.S. label still does not. Here is the part headlines skip: Rare still means rare. We are talking about a handful of extra cases per 10,000 people — not a common side effect. Diabetes itself already damages eyes and raises NAION risk. Causation is not proven. And these same medications prevent heart attacks, kidney failure, and a lot of other blindness from uncontrolled diabetes. So what should you actually do? If you are on a GLP-1 — or thinking about starting one — get a baseline eye exam. If you wake up with sudden dimming, a dark spot, or vision loss in one eye, that is an emergency. Same-day ophthalmology. Do not wait to “see if it clears.” Ask your doctor three questions before the next refill: 1. Do I have a crowded optic nerve or other NAION risk factors? 2. What is my personal risk-benefit, not the internet’s? 3. Who do I call at 6 a.m. if the lights go out? Miracle drugs still need informed consent. Rare does not mean never. Never does not mean common. Save this for someone starting Ozempic or Wegovy. Then send it to the person who only saw the headline. I’m a spine surgeon, not an eye doctor — this is awareness, not a prescription change. Talk to your own physician and ophthalmologist before you start, stop, or switch anything. — Dr Steven Cyr Tag someone on a GLP-1. Then tell me in the comments — did your doctor mention eye risk before the first shot? #Ozempic #Wegovy #GLP1 #VisionLoss #PatientSafety