Visual field testing evaluates the full scope of what you can see both directly ahead and at the periphery. It’s used to detect damage to the optic nerve, retinal disease, eyelid drooping, or problems along the visual pathway in the brain. By measuring areas of missing vision (defects), your specialist can monitor progression and guide treatment decisions.
What to expect during the test
- You’ll be seated in front of a device and asked to focus on a fixed central point.
- During the test, lights or shapes will appear in your peripheral vision. You press a button when you see them.
- Depending on the method, this may be done using a screen (Goldmann/Tangent), or an automated dome-system (Humphrey).
- The test takes roughly 5-15 minutes per eye. You can rest between tests if needed.
Clinical benefits
- Detects early changes in peripheral vision often before symptoms occur
- Helps diagnose glaucoma, brain lesions, retinal disease, or eyelid issues
- Enables tracking of disease progression or response to treatment
- Guides your specialist in tailoring treatment plans to preserve your vision
