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About this tool
Plan a study session that alternates screen and paper blocks, with 20-20-20 micro-breaks and rest gaps to cut eye strain.
This planner splits a study session into alternating screen and paper blocks — spread evenly through the day — and marks a 20-20-20 eye micro-break inside every screen block. It applies the American Academy of Ophthalmology's 20-20-20 rule and optometric advice to alternate close screen work with non-screen tasks. It is built for students who study partly from a laptop or tablet and partly from books, and want the screen exposure rationed instead of clumped.
Open Eye Strain Study Planner on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
Screen blocks are distributed through the session, not stacked back to back, using an even-spacing algorithm.
Every screen block shows how many 20-second far-focus breaks fall inside it, at 20-minute spacing.
See screen minutes, paper minutes, rest time and full elapsed time before you commit to the plan.
Follow the 20-20-20 rule — every 20 minutes look at something 20 feet (6 metres) away for at least 20 seconds — and alternate screen work with paper-based tasks so your eyes change focal distance regularly. This planner schedules both automatically for any session length up to 12 hours.
Paper does not emit light or invite the reduced blink rate associated with screen use, and blink rate can drop by roughly half during concentrated screen work, which drives dryness. The bigger win, though, is variety: alternating near-screen work with paper reading and far-focus breaks matters more than banning screens outright.
This tool defaults to 25-minute blocks with a 5-minute rest, a widely used focus interval, and accepts anything from 15 to 120 minutes. For eye comfort the block length matters less than making sure a 20-second far-focus pause happens every 20 minutes of screen time, which the planner marks inside each screen block.
It is the standard first-line advice from the American Academy of Ophthalmology and the American Optometric Association for digital eye strain, because brief far-focus pauses relax the eye's focusing muscle and restore blinking. Evidence for symptom relief is moderate rather than definitive, so treat it as a low-cost habit, and see an eye-care professional if symptoms persist.