Online Eye Test
A quick at-home vision screening. Calibrate your screen with a real card, sit at the asked distance, then read each line of the Snellen-style chart and type the letters. A rough check of your eyesight — not a medical diagnosis.
Step 1: Calibrate your screen
Match the blue rectangle below to a real bank/credit card (move the slider). This is needed so the letters show at the correct size.
Step 2: Start the test
Cover one eye with your hand while testing the other.
Sit as far away as you selected.
Line 20/200 — read the letters below
Result
-
-
-
This is only an estimate, not medical treatment. If you notice a problem with your vision, get a checkup from an eye specialist (ophthalmologist).
How to use
- Use the slider to match the blue rectangle to a real card (calibration).
- Select the eye and distance, then press "Start Test".
- Read and type the letters on each line — the test stops and gives your score when you get a line wrong.
Tips
- Calibrate with a real card first — every result depends on that step.
- Sit at the distance the test asks for; moving closer invalidates the score.
- Test each eye separately and compare the two results.
- This is a rough screening, not a diagnosis — see an eye doctor if you struggle.