Visual Field Test

Free

Visual Field Test is a free, web-based screening tool for checking peripheral vision at home. You run it in any browser. You need a screen and a way to cover one eye. No other hardware.

This is healthcare work: mapping what you can see at the edges of your vision, not the center. It helps you notice changes over time.

The tool offers two modes. Simple mode is a quick check with no setup. Advanced mode calibrates your screen and measures sensitivity in decibels, giving you numbers a clinician would recognize.

You get color-coded maps, response checks, and a plain-language AI summary. You can track history and compare results.

Open it if you want to monitor peripheral vision between clinic visits. Skip it if you need a diagnosis; this screens, it does not confirm disease.

It fits when you need to watch peripheral vision without traveling to a clinic.

• People with suspected glaucoma or optic nerve disorders: You catch early warning signs at home. You still need a full exam to confirm.
• Those needing to monitor peripheral vision changes: You spot patterns over weeks or months. You bring that record to your next appointment.
• Patients in underserved regions without clinic access: You get a basic screening where none exists. It is not a replacement for equipment a hospital has.
• People with glaucoma concerns needing frequent monitoring: You test more often than insurance covers. You watch for sudden shifts yourself.
• Patients wanting to track vision between clinical visits: You build a personal log. You show your doctor trends, not single points.
• Users curious about basic peripheral vision screening: You satisfy that curiosity in ten minutes. You learn if a real exam makes sense.
• Preliminary self-check before professional exam: You walk into the clinic with context. You ask better questions.
• Driver's license vision screenings: You check if you might pass. Rules vary by state, so you confirm locally.

These are the parts that keep you coming back.

• No special hardware: You use the screen you already own. You skip ordering gadgets you will use twice.
• Two modes for different needs: You pick quick or thorough. You are not forced into one long ritual.
• Color-coded result maps: You see blue where you saw the dot, orange where you missed. You grasp the pattern instantly.
• AI summary in plain language: You read what the numbers mean without a medical dictionary. You decide faster if something seems off.
• Tracks history over time: You compare this month to last. You notice drift before it becomes obvious.

The path is short.

1. Open the site and pick Simple or Advanced mode.
2. Cover one eye and keep your head still.
3. Click when you see a light appear at the edge of the screen.
4. Repeat for the other eye or both eyes together.
5. Review your map, stats, and AI summary.

Skip it when these limits matter.

• Not a standalone diagnosis: You can get normal results and still have disease. You always follow up with a clinician.
• Accuracy unverified against hospital machines: You do not know if your numbers match a Humphrey or Octopus machine. You treat trends as hints, not proof.
• Can be tiring: You focus hard for several minutes. You may need to repeat the test for reliable data.
• Requires careful positioning: You must keep your head still and distance right. You get bad data if you drift.