Evaluation of Objective Perimetry Using Chromatic Multifocal Pupillometer

This study is evaluating a new, more objective way to test the visual field (how well you can see things to the sides while looking straight ahead) in people with glaucoma, using a special type of light stimulus to detect early vision loss more accurately than standard tests. **You may be eligible if...** - You have been diagnosed with glaucoma or are at high risk for glaucoma due to elevated eye pressure - You are between 18 and 80 years old - You have clear enough vision and eye health to complete the tests - You are willing to attend several follow-up testing sessions **You may NOT be eligible if...** - You have significant vision loss from causes other than glaucoma - You have had major eye surgery (other than cataract surgery) that affects your visual field results - You have conditions that make it difficult to reliably complete vision tests (such as neurological diseases affecting vision) - You cannot complete the required follow-up visits Talk to your doctor to see if this trial is right for you.