Testing a new medication to protect vision in diabetic eye disease

This trial is testing a medication called levosulpiride to see if it can help prevent and treat vision problems caused by diabetes. Specifically, researchers want to know if levosulpiride can help protect the retina (the light-sensing part of your eye) and reduce swelling in the macula (the central part of your vision) in people with diabetic eye disease. The medication works by increasing levels of a natural hormone called prolactin, which early research suggests may protect the eyes.

Diabetic eye disease is a major cause of blindness in working-age adults, and current treatments—like lasers or frequent eye injections—don't always prevent vision loss or come with risks. This trial exists to explore whether this medication could offer a safer, gentler way to protect vision by working on a completely different part of the disease process.