Could a drink protect eyesight in glaucoma?

This study tested whether a daily oral solution containing citicoline and nicotinamide (Kron®) could improve eye function in 30 people with moderate open-angle glaucoma. Participants had controlled eye pressure but still had vision loss. The study measured electrical activity in the retina and brain, as well as visual field tests, over a short period. The goal was to see if the supplement could help protect remaining vision, not to cure the disease.