Testing repeated laser eye treatment for glaucoma pressure control

The GLASS Study is testing a laser procedure called Direct Selective Laser Trabeculoplasty (DSLT) to help lower eye pressure in people with glaucoma or high eye pressure. In this study, one of your eyes will receive the laser treatment twice (once at the start, once after 3 months), while the other eye receives it just once. Researchers want to see if the extra treatment in one eye helps keep pressure lower for longer.

Many people with early glaucoma need medication to control their eye pressure and prevent vision loss, but some prefer laser treatment instead. This study is trying to figure out whether doing the laser treatment twice works better than doing it just once, which could help more patients avoid or delay the need for daily eye drops.