Optic neuritis (ON) is an inflammation that damages your optic nerve. It can cause vision loss and pain when you move your eyes. As the inflammation goes away, your symptoms usually get better.

Space travel affects the human body in unexpected ways. Scientists now highlight a growing concern—eye health.

Use of once-weekly semaglutide more than doubles the risk for nonarteritic anterior ischemic optic neuropathy in those with type 2 diabetes.