Visual Acuity Test: Check How Sharp Your Vision Is
[Answer-first intro, 40–60 words: what visual acuity means, what score you get (6/6, 20/20), about 5 minutes per test.]
Last updatedHow the visual acuity test works
This test needs a computer or tablet: a bright screen of at least 33 cm (13″) and 3 m (10 ft) of space. It does not work on a phone.
Set up your screen
Use a bright screen of at least 33 cm (13″) and a wireless mouse on a flat surface. Sit 3 m (10 ft) away.
Cover one eye and answer
Picture shapes for ages 3–7, Landolt C rings for ages 8 and up. About 1–2 minutes per eye.
Get your results
A Pass or Refer result for each eye. Want more detail? Get the full PDF report for $2.
[Disclaimer: a screening, not a diagnosis.]
Video: how the visual acuity test works
[60–90 sec: screen calibration, sitting distance, answering the Landolt C, reading 6/x and 20/x.]
What your visual acuity score means
| Score (metric) | Score (US) | What it means |
|---|---|---|
| 6/6 | 20/20 | [Typical healthy vision] |
| 6/12 | 20/40 | [Meaning + driving threshold note] |
| 6/60 | 20/200 | [Meaning + see an eye doctor] |
What is visual acuity?
[2 short paragraphs]
What does 20/20 vision mean?
[Snellen fraction explained]
Normal visual acuity by age
[Children vs adults table or list]
Landolt C vs Snellen chart
[Why we use Landolt C; link to /eye-charts/snellen]