Doctors have issued an urgent warning in relation to weight-loss jabs after a man in Dublin went blind in one eye after using the popular injectable medication. The 50-year-old obese male attended the Mater Hospital after suddenly losing sight in his right eye. He had been taking weight-loss jabs once a week for two years. Specialists at the hospital’s Department of Ophthalmology linked the vision loss to semaglutide, which is the active ingredient in weight-loss jabs including Ozempic, Wegovy, and Mounjaro. Earlier this week, the British Medicines and Health Products Regulatory Authority acknowledged the existence of the complication and urged patients taking weight-loss jabs who notice vision changes to immediately seek medical attention.

Source: Irish Examiner February 06, 2026 20:00 UTC