Visual field testing.
At iDoctor, the Haag-Streit Octopus 600 tests sensitivity in your central visual field. You focus straight ahead while responding to lights at different points.
Same- and next-day appointments typically available.
Beyond the eye chart
Understanding the wider picture.
Visual field testing, also called perimetry, measures the area you can see while looking straight ahead. It produces a map of sensitivity at the points tested. Your doctor may recommend it to assess or monitor changes in vision.
- Central & side vision
- Testing can help identify areas of reduced sensitivity or missing vision.
- Monitoring over time
- Visual fields can help your doctor assess vision changes associated with glaucoma and other conditions. Depending on the findings, they may also help assess the effects of retinal, optic-nerve or visual-pathway conditions.
- Part of your eye care
- Your doctor considers the results alongside your history and other examination findings.
The testing experience
Focus ahead. Respond to the light.
With the Octopus 600, you look toward a central target and respond when lights appear in different areas. Our team explains the test and guides you through it.
Look at the target
Keep your gaze on the central point as directed.
Press when you see a light
Use the response button when a light appears. Some lights may be too dim to see.
Review the results
Your doctor interprets the test and explains any recommended next steps. Repeat testing or other evaluation may be recommended based on your results and history.
Personal care at iDoctor