Hopeful antioxidant tested to slow blinding eye disease

This study is checking the long-term safety and side effects of a high-dose antioxidant supplement called N-Acetylcysteine (NAC) in 30 adults with retinitis pigmentosa, a disease that damages vision. The goal is to see if people can safely take this medication twice daily for an extended period, as it is thought to protect delicate eye cells from damage. This is an early-phase study focused on safety, not proving if the treatment works to save vision.