Eye-Rest 20-20-20 Reminders

<p><strong>Why this helps:</strong> The evidence for the 20-20-20 rule is genuinely mixed. Johnson et al. (Contact Lens and Anterior Eye, 2023) found that 29 laptop users took more breaks and reported less digital eye strain and dry-eye discomfort when reminded of the rule, though the benefit faded once the reminders stopped. A separate 2023 study of 30 readers found breaks every 5, 10, or 20 minutes produced no significant symptom change. So we frame this as a gentle, low-cost habit worth trying, not a cure.</p><h4>The reminder (push notification, rotating set)</h4><p>Keep these short. Rotate so they do not become wallpaper.</p><p>1. <strong>20-20-20.</strong> Look at something about twenty feet away for twenty seconds. Your eyes have been holding one distance too long.<br>2. <strong>Lift your gaze.</strong> Find the farthest thing you can see and rest there for a slow count of twenty.<br>3. <strong>Twenty feet, twenty seconds.</strong> A window, a far wall, the sky. Let your eyes reach for distance.<br>4. <strong>Quick eye break.</strong> Soften your focus and look far away. No effort, just distance, for about twenty seconds.<br>5. <strong>Your eyes have been working hard.</strong> Give them twenty seconds on the horizon.</p><h4>In-app micro-screen (when the user opens the break)</h4><p><strong>Heading:</strong> Look up and out.</p><p><strong>Body:</strong> Find something roughly twenty feet away. A doorway, a tree, the far side of the room. Let your eyes settle there. You do not have to stare. Just stop asking them to hold this close, fixed distance for a while.</p><p><strong>Timer copy (20-second countdown, large and calm):</strong> "Resting your eyes. 20... 19... 18..."</p><p><strong>On completion:</strong> "Good. Blink a few times, fully and slowly. Screens cut our blink rate roughly in half, which is part of why eyes feel dry. Back whenever you are ready."</p><h4>Settings copy</h4><p><strong>Toggle label:</strong> Eye-rest reminders</p><p><strong>Description:</strong> We will nudge you every twenty minutes of screen time to look into the distance for twenty seconds. The research on this exact rule is mixed, so treat it as a small, friendly habit rather than a prescription. If your eyes ache, water, or blur often, that is worth a real eye exam, which an app cannot replace.</p><p><strong>Frequency options:</strong> Every 20 minutes (standard) / Every 30 minutes (lighter touch) / Only during long sessions (60+ minutes continuous) / Off</p><h4>Honest research note (shown once, in "Why this works")</h4><p><strong>Heading:</strong> Does this actually help.</p><p><strong>Body:</strong> Honestly, the science is split. One 2023 study (Johnson and colleagues, Contact Lens and Anterior Eye) found people who were reminded of the 20-20-20 rule took more breaks and felt less eye strain and dryness, though the benefit faded when the reminders stopped. A different 2023 study found breaks at 5, 10, or 20 minutes made no measurable difference to symptoms. What is not in dispute: long, unbroken near-focus is tiring, blinking less dries the eye surface, and stepping back from a screen for twenty seconds costs you almost nothing. We think a free habit with possible upside and no downside is worth keeping. You can always turn it off.</p><h2>Sources</h2><ul><li>Johnson et al., Contact Lens and Anterior Eye, 2023 — reminded users took more breaks and reported reduced digital eye strain and dry-eye symptoms; benefit did not persist after reminders stopped.</li><li>Controlled reading-break study, 2023 (reported in Optometry Advisor / Eyes On Eyecare) — breaks every 5, 10, or 20 minutes showed no significant effect on digital eye strain symptoms.</li><li>"20-20-20 Rule: Are These Numbers Justified?" PubMed, 2022 (PMID 36473088) — notes limited peer-reviewed evidence behind the specific numbers.</li></ul>