During a visual field test, the individual typically focuses on a central point while small lights or other stimuli are presented at different locations within their peripheral vision. The person undergoing the test responds whenever they see these stimuli. The results are then used to create a visual field map, which can help diagnose or track the progression of conditions such as glaucoma. The visual field test only takes a few minutes per eye and is completely painless and non-invasive. | Emp