How glaucoma medications affect the eye's surface and tear chemistry

This research study is investigating how glaucoma medications affect the surface of your eye, particularly a special area called the limbus that contains important stem cells. Researchers will examine the thickness of your cornea (the clear front of your eye) and analyze proteins in your tears to understand how these medications impact eye health over time. The study compares people who are newly diagnosed with glaucoma, those who have been taking glaucoma medications for over a year, and healthy volunteers without glaucoma.

Many people with glaucoma need to use eye drops for years or even a lifetime to control eye pressure. However, doctors have noticed that long-term use of these medications can sometimes cause surface damage to the eye, including signs of stem cell damage. This study aims to understand exactly how and why this happens, which could help doctors detect problems earlier and design safer medications in the future.