https://github.com/michaelbach/FrACT10/
GitHub - michaelbach/FrACT10: The Freiburg Vision Test (FrACT) assesses visual acuities and...
The Freiburg Vision Test (FrACT) assesses visual acuities and contrast thresholds. It runs in any modern browser, or as web app. - michaelbach/FrACT10
vision test