Terms of Use
By using this site you agree to these terms.
Purpose of the site
The tests and articles are provided free of charge, for information and screening only.
No medical advice
Nothing on this site is a medical diagnosis or medical advice. Results depend on your screen and lighting. Do not rely on them for decisions about work, driving or health; consult a qualified eye care professional.
Permitted use
You may use the tests for personal, educational and workplace screening purposes. The plates, text and code are our own work; do not republish them without permission.
Liability
The site is provided as is, without warranty. To the extent the law allows, we are not liable for loss arising from use of the site or reliance on a result.
Changes
We may update the site and these terms. The current version is always on this page.