The study had two major goals. To determine if early treatment of people who have increased IOP with eye drops would prevent them from developing glaucoma, and also to determine which people are more likely to develop glaucoma.
The optic nerve is the part of the eye that carries visual information from the eye to the brain. It is located at the very back of the eye just to the nose side of center. It is also the part of the eye that gets injured when someone has glaucoma.