A 10-second daily
Landolt C vision self-check
Check your visual acuity with Landolt C rings in about 10 seconds a day, on the high-resolution display of your iPhone or iPad. Results are never saved or transmitted, and the app shows no ads.
Get it on the App StoreWhat it does
- Rings follow the international Landolt C standard formula — measure from 0.1 up to 2.0
- Set the viewing distance from 10 to 100 cm; the measurable range adapts
- The gap rotates randomly each trial, so you can test again and again
- No saved results, no accounts, no ads