Vision test

Eyesight screening (not an eye exam): calibrate the screen with a bank card, then distance acuity (logMAR chart, Tumbling E or Landolt C, each eye separately), near vision (reading card N5–N24), Amsler grid, astigmatism dial, contrast sensitivity and colour vision plates. Results as logMAR, decimal, 6/x and 20/x, kept on this device only; print them for your optometrist.

Updated 8 November 2026

What you can do

• Eyesight screening (not an eye exam)
• Calibrate the screen with a bank card
• Then distance acuity (logMAR chart
• Tumbling E or Landolt C
• Each eye separately)
• Near vision (reading card N5–N24)
• Amsler grid
• Astigmatism dial
• Contrast sensitivity and colour vision plates
• Results as logMAR
• Decimal
• 6/x and 20/x

At a glance

• Free to use
• Runs in the browser, nothing to install
• Works on phones, tablets and computers
• Available in 36 languages

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