A 20-20-20 timer for students.
Students today look at screens longer than any generation before them — and longer than is healthy for an eye still finishing its development. Online lectures, e-textbooks, group chats, and recreational screen time stack up to ten or more hours a day. EYE CARE is a free 20-20-20 timer that gently enforces the eye-care rule recommended by the American Optometric Association, so your eyes survive exam season as well as your grades do.
Why students need the 20-20-20 rule more than adults
- Eyes are still developing into the early twenties; prolonged near-focus during this window is one of the strongest known accelerators of myopia.
- Cramming sessions involve hours of unbroken close-up reading — the worst possible pattern for the ciliary muscle.
- Online classes mean even relaxation often happens on the same screen as study, with no natural reset between modes.
How to fit it into a study day
Open EYE CARE in a tab next to your study materials; the timer runs alongside your work. When the break appears, look out the window or at the wall across the room — count three things you can see at distance. Stand up, stretch, drink water. Twenty seconds. Then back to work. If you study with a friend or a study group, sync your breaks; the social cue makes the habit stick. For exam-prep weeks specifically, the breaks measurably reduce end-of-day eye fatigue, which means clearer reading on the second pass through your notes.
What the rule will not solve
The 20-20-20 timer does not replace adequate sleep, regular outdoor time (which has its own protective effect on developing eyes — see the 20-20-2 rule), or a yearly eye exam. If you are squinting at the whiteboard or moving your phone closer to your face, schedule an exam regardless of your timer habits. New myopia is most treatable when caught early.
Common questions
- Will this help during online classes?
- Yes. Open EYE CARE in a separate tab during class. The break overlay appears every 20 minutes; you can skip it during a live exam moment with the Esc key.
- Is the 20-20-20 rule recommended by eye doctors?
- Yes. The American Optometric Association and most pediatric ophthalmologists recommend it as a baseline habit for anyone using screens for more than two hours daily.
- I am a kid — is this rule different for me?
- The rule itself is the same, but children should also aim for 2+ hours of outdoor time daily — sunlight exposure protects against myopia progression. This is sometimes called the 20-20-2 rule.
- Will it work on my Chromebook?
- Yes — EYE CARE runs in any modern browser, including Chrome on Chromebook. No download or installation required.