Glaucoma is a group of eye conditions that damage the optic nerve, the part of your eye responsible for sending visual information to your brain. This damage is often associated with increased pressure inside the eye, but it can also occur even when eye pressure appears normal.
What makes glaucoma challenging is how gradually it develops. In many cases, it begins by affecting your peripheral (side) vision, which can change slowly over time without being obvious. Because central vision is often preserved until later stages, it’s easy to miss early warning signs without a comprehensive eye exam.

