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How Far Are You From Your Screen?

7-second test to measure eye-to-screen distance. This helps your eye doctor prescribe the right computer glasses to help reduce eye strain.

Thank you for being a valued customer of:

Your Organization Name Here.

You have completed the screen distance measurement.

Please bring these results to your next eye appointment to help your doctor prescribe the perfect computer glasses.

ft
in
We'll use your height to estimate your arm length. For webcam mode, this helps with calibration. For manual mode, this can help estimate your screen distance.
Manual Mode
Enter your best guess for your current eye-to-screen distance. (or grab a tape measure!)
Typical ranges: 18–24 in (45–60 cm) close • 24–30 in (60–75 cm) normal • 30 in+ (75 cm+) far
Screen Distance Results
After measurement, your results will appear here.
Report provided by:
Your Practice Name

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Estimated average distance
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Method: —

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If glasses feel off, ask about lenses optimized for this working distance.
Typical range
(10th–90th)
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Time too close
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If computer glasses feel "off," tell your eye doctor your real working distance (above) and ask for lenses optimized for that distance.
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No results yet.
Share this with your doctor
For your eye doctor: This tool helps collect your actual screen distance before your office visit. Sharing this measurement helps your doctor prescribe lenses optimized for your real working distance, reducing prescription errors and unnecessary callbacks. Many patients who sit far from their screen receive incorrect prescriptions when distance isn't measured—this tool helps prevent that.
Note: Our report is a non-identifying, non-diagnostic ergonomic estimate generated locally in the browser. We do not collect or store patient data. This tool provides non-diagnostic ergonomic estimates and does not collect, store, or transmit personal or patient health information.
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