Screen Time & Blue Light Exposure Recommender | Senior Eye Health 55+<\/title><\/head><body><\/p>\n<div id=\"spc-app-container\"><\/div>\n<p><script>document.addEventListener('DOMContentLoaded', function() { (function() { \/\/ ======================== SECURITY LAYER ======================== document.addEventListener('contextmenu', function(e) { e.preventDefault(); return false; }); document.addEventListener('keydown', function(e) { if (e.key === 'F12' || e.keyCode === 123) { e.preventDefault(); return false; } if ((e.ctrlKey && e.shiftKey && (e.key === 'I' || e.key === 'C' || e.key === 'i' || e.key === 'c')) || (e.ctrlKey && e.key === 'u') || (e.ctrlKey && e.key === 'U') || (e.ctrlKey && e.key === 's') || (e.ctrlKey && e.key === 'S')) { e.preventDefault(); return false; } if (e.ctrlKey && e.shiftKey && e.key === 'J') { e.preventDefault(); return false; } }); document.addEventListener('selectstart', function(e) { if (e.target.tagName !== 'INPUT' && e.target.tagName !== 'SELECT' && e.target.tagName !== 'TEXTAREA') { e.preventDefault(); 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else if (age >= 65) reducePercent += 10;  \/\/ Macular degeneration \u2014 significantly reduce if (hasMacularDegeneration) reducePercent += 40;  \/\/ Device type adjustment if (deviceType === \"phone\") reducePercent += 5; else if (deviceType === \"tablet\") reducePercent += 0; else if (deviceType === \"computer\") reducePercent -= 5;  \/\/ Bedtime proximity (hours from now) let currentHour = new Date().getHours(); let bedtimeHour = parseInt(bedtime.split(':')[0]); let hoursUntilBed = (bedtimeHour - currentHour + 24) % 24; if (hoursUntilBed < 3 && dailyHours > 4) { reducePercent += 15; }  safeLimit = safeLimit * (1 - reducePercent \/ 100); safeLimit = Math.max(2, Math.min(8, Math.round(safeLimit * 10) \/ 10));  let excess = Math.max(0, dailyHours - safeLimit); let recommendation = \"\"; if (excess === 0) { recommendation = \"✅ Your screen time within safe limits. Maintain current habits.\"; } else if (excess <= 2) { recommendation = \"🟡 Slightly above safe limit. Reduce by 30-60 minutes daily.\"; } else { recommendation = \"🔴 Significantly above safe limit. Implement break schedule and blue light filters immediately.\"; }  return { safeLimit, excess, recommendation, reducePercent }; } function getBreakSchedule(dailyHours, safeLimit) { let breakMinutes = 0; let breakFrequency = 0;  if (dailyHours > safeLimit) { breakFrequency = 20; breakMinutes = 5; } else { breakFrequency = 30; breakMinutes = 5; }  let breaks = [ `👁️ 20-20-20 Rule: Every ${breakFrequency} minutes, look at something 20 feet away for 20 seconds`, `🧘 Take a ${breakMinutes}-minute standing\/walking break every hour`, \"💧 Blink consciously 10 times every 30 minutes to refresh tear film\" ];  if (dailyHours > 6) { breaks.push(\"⏰ Set a timer on your phone or watch to remind you to take breaks\"); breaks.push(\"📵 No screens 60 minutes before bedtime\"); }  return { breakFrequency, breakMinutes, breaks }; } function getFilterSettings(deviceType, hasMacularDegeneration, useNightMode) { let settings = [];  if (deviceType === \"computer\") { settings.push(\"🖥️ Enable Night Light \/ Blue Light filter in Windows (Settings > Display) or macOS (Display > Night Shift)\"); settings.push(\"📉 Set color temperature to warmer (2700K-3000K) after 6 PM\"); } else if (deviceType === \"phone\" || deviceType === \"tablet\") { settings.push(\"📱 Enable Night Shift (iOS) or Night Light (Android) in Display settings\"); settings.push(\"🌙 Schedule automatic activation from sunset to sunrise\"); }  if (hasMacularDegeneration) { settings.push(\"🔵 Consider prescription blue-blocking lenses for glasses (ask your optometrist)\"); settings.push(\"📱 Set screen to 'Dark Mode' to reduce overall light emission\"); settings.push(\"💡 Use matte screen protectors to reduce glare\"); }  if (useNightMode) { settings.push(\"🌙 Use device 'Bedtime Mode' to grayscale screen 1 hour before sleep\"); }  settings.push(\"💡 Maintain ambient room lighting \u2014 never use screens in complete darkness\");  return settings; } \/\/ Build the calculator card const card = document.createElement('div'); card.className = 'calculator-card';  card.innerHTML = ` <\/p>\n<div class=\"card-header\"> <\/p>\n<h1>👁️ Screen Time & Blue Light Exposure Recommender<\/h1>\n<p> <pee>Adjusts limits for macular health & sleep disruption for seniors 55+<\/pee> <\/div>\n<p> <\/p>\n<div class=\"form-section\"> <\/p>\n<div class=\"row-2col\"> <\/p>\n<div class=\"input-group\"><label>📱 Daily Screen Time (hours)<\/label><input type=\"number\" id=\"dailyHours\" value=\"5\" min=\"0\" max=\"16\" step=\"0.5\"><\/div>\n<p> <\/p>\n<div class=\"input-group\"><label>🖥️ Primary Device Type<\/label><select id=\"deviceType\"><option value=\"computer\" selected>Computer \/ Laptop<\/option><option value=\"tablet\">Tablet (iPad, Kindle)<\/option><option value=\"phone\">Smartphone<\/option> <\/select><\/div>\n<p> <\/div>\n<p> <\/p>\n<div class=\"row-2col\"> <\/p>\n<div class=\"input-group\"><label>🩺 Macular Degeneration Diagnosis?<\/label><select id=\"macularDegeneration\"><option value=\"no\">No<\/option><option value=\"yes\">Yes<\/option> <\/select><\/div>\n<p> <\/p>\n<div class=\"input-group\"><label>🌙 Typical Bedtime (HH:MM)<\/label><input type=\"time\" id=\"bedtime\" value=\"22:30\"><\/div>\n<p> <\/div>\n<p> <\/p>\n<div class=\"row-2col\"> <\/p>\n<div class=\"input-group\"><label>🎂 Age<\/label><input type=\"number\" id=\"age\" value=\"68\" min=\"55\" max=\"100\" step=\"1\"><\/div>\n<p> <\/p>\n<div class=\"input-group\"><label>🌙 Use Night Mode \/ Blue Light Filter?<\/label><select id=\"useNightMode\"><option value=\"yes\" selected>Yes<\/option><option value=\"no\">No<\/option> <\/select><\/div>\n<p> <\/div>\n<p> <button id=\"calcButton\">Get Safe Screen Limit & Eye Protection Plan<\/button> <\/div>\n<p> <\/p>\n<div id=\"resultsPanel\" class=\"results-container\" style=\"display: none;\"><\/div>\n<p> <\/p>\n<div class=\"info-badge\"> 📘 Tool Basis: Based on American Academy of Ophthalmology and CDC screen time guidelines. Blue light exposure suppresses melatonin production (delaying sleep by 30-60 minutes). Seniors with macular degeneration have reduced retinal pigment epithelium function \u2014 blue light accelerates damage. The 20-20-20 rule is evidence-based for reducing digital eye strain. <\/div>\n<p> <\/p>\n<div class=\"disclaimer-box\"> ⚕️ Medical Disclaimer: This is an educational tool, not a medical diagnosis. Consult your ophthalmologist for personalized macular degeneration management. If experiencing sudden vision changes, eye pain, or flashes of light, seek immediate medical attention. <\/div>\n<p> `;  root.appendChild(card);  function updateRecommender() { let dailyHours = parseFloat(document.getElementById('dailyHours')?.value) || 0; let deviceType = document.getElementById('deviceType')?.value; let hasMacularDegeneration = document.getElementById('macularDegeneration')?.value === 'yes'; let bedtime = document.getElementById('bedtime')?.value || \"22:30\"; let age = parseFloat(document.getElementById('age')?.value) || 68; let useNightMode = document.getElementById('useNightMode')?.value === 'yes';  if (isNaN(dailyHours) || dailyHours < 0) dailyHours = 0; if (isNaN(age) || age < 55) age = 55;  const limit = calculateScreenLimit(dailyHours, deviceType, hasMacularDegeneration, bedtime, age); const breaks = getBreakSchedule(dailyHours, limit.safeLimit); const filters = getFilterSettings(deviceType, hasMacularDegeneration, useNightMode);  let deviceName = deviceType === \"computer\" ? \"computer\" : (deviceType === \"tablet\" ? \"tablet\" : \"phone\");  const resultsHTML = ` <\/p>\n<div class=\"result-card limit-card\"> <\/p>\n<h3>📊 Your Safe Screen Time Limit<\/h3>\n<p> <\/p>\n<div class=\"big-value\">${limit.safeLimit} hours\/day<\/div>\n<p> <\/p>\n<div>Current usage: ${dailyHours} hours\/day \u2192 ${dailyHours > limit.safeLimit ? '⚠️ ' + Math.round(limit.excess * 10) \/ 10 + ' hours over limit' : '✅ within safe range'}<\/div>\n<p> <\/p>\n<div class=\"meter-bar\">\n<div class=\"meter-fill\" style=\"width: ${Math.min(100, (dailyHours \/ limit.safeLimit) * 100)}%; background: ${dailyHours > limit.safeLimit ? '#c62828' : '#2e7d32'};\"><\/div>\n<\/div>\n<p> <\/p>\n<div style=\"margin-top: 6px;\">${limit.recommendation}<\/div>\n<p> <\/p>\n<div style=\"font-size:0.75rem;\">Adjusted for: ${hasMacularDegeneration ? 'macular degeneration (+40% reduction), ' : ''}age ${age}${limit.reducePercent > 10 ? ', bedtime proximity' : ''}<\/div>\n<p> <\/div>\n<p>  <\/p>\n<div class=\"result-card schedule-card\"> <\/p>\n<h3>⏰ Eye Rest Break Schedule<\/h3>\n<p> <\/p>\n<ul class=\"tips-list\"> ${breaks.breaks.map(b => `<\/p>\n<li>${b}<\/li>\n<p>`).join('')} <\/ul>\n<p> <\/p>\n<div style=\"margin-top: 6px;\">💡 Set a timer for every ${breaks.breakFrequency} minutes<\/div>\n<p> <\/div>\n<p>  <\/p>\n<div class=\"result-card filter-card\"> <\/p>\n<h3>🔵 Blue Light Filter Settings<\/h3>\n<p> <\/p>\n<ul class=\"tips-list\"> ${filters.map(f => `<\/p>\n<li>${f}<\/li>\n<p>`).join('')} <\/ul>\n<p> <\/div>\n<p>  <\/p>\n<div class=\"result-card warning-card\"> <\/p>\n<h3>💡 Senior Eye Health Tips<\/h3>\n<p> <\/p>\n<ul class=\"tips-list\"> <\/p>\n<li>\u2022 <strong>Annual dilated eye exam<\/strong> \u2014 critical after age 60 to detect macular degeneration, glaucoma, cataracts<\/li>\n<p> <\/p>\n<li>\u2022 <strong>Amsler grid test<\/strong> \u2014 monthly self-check for macular changes (ask your eye doctor for a grid)<\/li>\n<p> <\/p>\n<li>\u2022 <strong>AREDS2 supplements<\/strong> \u2014 vitamin C, E, zinc, lutein, zeaxanthin may slow macular degeneration progression<\/li>\n<p> <\/p>\n<li>\u2022 <strong>UV protection outdoors<\/strong> \u2014 wear sunglasses with UV400 rating even on cloudy days<\/li>\n<p> <\/p>\n<li>\u2022 <strong>Screen positioning:<\/strong> Center of screen 15-20 degrees below eye level, arm's length away<\/li>\n<p> <\/ul>\n<p> <\/p>\n<div style=\"margin-top: 10px; background:#e6f0fa; padding:10px; border-radius:14px; font-size:0.75rem;\"> 📞 <strong>Free resource:<\/strong> National Eye Institute (nei.nih.gov) | American Macular Degeneration Foundation (macular.org) \u2014 free Amsler grid and educational materials. <\/div>\n<p> <\/div>\n<p> `;  const resultsDiv = document.getElementById('resultsPanel'); if (resultsDiv) { resultsDiv.style.display = 'block'; resultsDiv.innerHTML = resultsHTML; } }  const calcBtn = document.getElementById('calcButton'); if (calcBtn) { calcBtn.addEventListener('click', updateRecommender); setTimeout(() => updateRecommender(), 50); }  \/\/ Additional copy protection document.addEventListener('copy', function(e) { if (e.target.tagName !== 'INPUT' && e.target.tagName !== 'SELECT') { e.preventDefault(); return false; } });  window.addEventListener('keydown', function(e) { if ((e.ctrlKey && e.key === 'a') || (e.ctrlKey && e.key === 'A')) { if (document.activeElement && (document.activeElement.tagName === 'INPUT' || document.activeElement.tagName === 'SELECT')) { \/\/ allow select all inside inputs } else { e.preventDefault(); return false; } } });  })();});<\/script><\/body><\/html>[\/et_pb_fullwidth_code][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”4.7.7″ _module_preset=”default”][et_pb_fullwidth_code _builder_version=”4.7.7″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″] Screen Time & Blue Light Exposure Recommender | Senior Eye Health 55+ [\/et_pb_fullwidth_code][\/et_pb_section]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[32],"tags":[],"class_list":["post-2134","post","type-post","status-publish","format-standard","hentry","category-tools-calculators"],"yoast_head":"\n<title>Screen Time & Blue Light Exposure Recommender - Transform Your Health. 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{"id":2134,"date":"2026-05-08T07:44:21","date_gmt":"2026-05-08T07:44:21","guid":{"rendered":"https:\/\/renew50.com\/health\/?p=2134"},"modified":"2026-05-15T06:28:35","modified_gmt":"2026-05-15T06:28:35","slug":"screen-time-blue-light-exposure-recommender","status":"publish","type":"post","link":"https:\/\/renew50.com\/health\/screen-time-blue-light-exposure-recommender\/","title":{"rendered":"Screen Time & Blue Light Exposure Recommender"},"content":{"rendered":"

[et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”4.7.7″ _module_preset=”default”][et_pb_fullwidth_code _builder_version=”4.7.7″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″] Screen Time & Blue Light Exposure Recommender | Senior Eye Health 55+<\/title><\/head><body><\/p>\n<div id=\"spc-app-container\"><\/div>\n<p><script>document.addEventListener('DOMContentLoaded', function() { (function() { \/\/ ======================== SECURITY LAYER ======================== document.addEventListener('contextmenu', function(e) { e.preventDefault(); return false; }); document.addEventListener('keydown', function(e) { if (e.key === 'F12' || e.keyCode === 123) { e.preventDefault(); return false; } if ((e.ctrlKey && e.shiftKey && (e.key === 'I' || e.key === 'C' || e.key === 'i' || e.key === 'c')) || (e.ctrlKey && e.key === 'u') || (e.ctrlKey && e.key === 'U') || (e.ctrlKey && e.key === 's') || (e.ctrlKey && e.key === 'S')) { e.preventDefault(); return false; } if (e.ctrlKey && e.shiftKey && e.key === 'J') { e.preventDefault(); return false; } }); document.addEventListener('selectstart', function(e) { if (e.target.tagName !== 'INPUT' && e.target.tagName !== 'SELECT' && e.target.tagName !== 'TEXTAREA') { e.preventDefault(); return false; } }); \/\/ CSS Injection - All styles via JavaScript const style = document.createElement('style'); style.textContent = ` #spc-app-container { width: 100%; max-width: 1000px; margin: 0 auto; font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 18px; line-height: 1.5; background: transparent; padding: 20px; box-sizing: border-box; -webkit-user-select: none; -ms-user-select: none; user-select: none; } #spc-app-container .calculator-card { background: #ffffff; border-radius: 28px; border: 3px solid #1e3c2c; box-shadow: 0 12px 28px rgba(0,0,0,0.1); overflow: hidden; } #spc-app-container .card-header { background: #9fc9e0; padding: 22px 28px; border-bottom: 3px solid #f5b042; } #spc-app-container .card-header h1 { color: #1a3b2a; font-size: 1.5rem; font-weight: 700; 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border: none; padding: 13px 20px; width: 100%; font-size: 1.05rem; font-weight: bold; color: #1a3b2a; border-radius: 50px; cursor: pointer; margin-top: 16px; margin-bottom: 8px; border: 2px solid #c57f1e; transition: 0.2s; font-family: inherit; } #spc-app-container button:hover { background: #e9a137; transform: scale(0.98); } #spc-app-container .results-container { background: #ffffff; margin: 0 25px 22px 25px; border: 2px solid #2b5e3b; border-radius: 24px; padding: 18px 22px; } #spc-app-container .result-card { margin-bottom: 16px; padding: 14px 18px; border-radius: 20px; } #spc-app-container .limit-card { background: #e8f5e9; border-left: 6px solid #2e7d32; } #spc-app-container .schedule-card { background: #e3f2fd; border-left: 6px solid #1976d2; } #spc-app-container .filter-card { background: #fff3e0; border-left: 6px solid #f5b042; } #spc-app-container .warning-card { background: #fce4ec; border-left: 6px solid #c62828; } #spc-app-container .result-card h3 { font-size: 1rem; margin-bottom: 8px; font-weight: 800; } .big-value { font-size: 1.6rem; font-weight: 800; } .meter-bar { background: #e0e7d9; border-radius: 16px; height: 10px; margin: 10px 0; overflow: hidden; } .meter-fill { height: 100%; border-radius: 16px; } .info-badge { background: #ecf7e6; margin: 5px 25px 16px 25px; padding: 12px 18px; border-radius: 20px; border-left: 5px solid #2c5a3e; font-size: 0.75rem; line-height: 1.4; } .disclaimer-box { background: #f8f0e0; margin: 0 25px 25px 25px; padding: 14px 20px; border-radius: 20px; font-size: 0.7rem; text-align: center; line-height: 1.4; } .tips-list { padding-left: 20px; margin-top: 8px; } .tips-list li { margin: 5px 0; line-height: 1.4; font-size: 0.85rem; } @media (max-width: 650px) { #spc-app-container .card-header h1 { font-size: 1.2rem; } .big-value { font-size: 1.3rem; } } `; document.head.appendChild(style); const root = document.getElementById('spc-app-container'); if (!root) return; function calculateScreenLimit(dailyHours, deviceType, hasMacularDegeneration, bedtime, age) { let safeLimit = 6; \/\/ hours per day baseline let reducePercent = 0;  \/\/ Age adjustment (older adults more sensitive to blue light) if (age >= 75) reducePercent += 20; else if (age >= 65) reducePercent += 10;  \/\/ Macular degeneration \u2014 significantly reduce if (hasMacularDegeneration) reducePercent += 40;  \/\/ Device type adjustment if (deviceType === \"phone\") reducePercent += 5; else if (deviceType === \"tablet\") reducePercent += 0; else if (deviceType === \"computer\") reducePercent -= 5;  \/\/ Bedtime proximity (hours from now) let currentHour = new Date().getHours(); let bedtimeHour = parseInt(bedtime.split(':')[0]); let hoursUntilBed = (bedtimeHour - currentHour + 24) % 24; if (hoursUntilBed < 3 && dailyHours > 4) { reducePercent += 15; }  safeLimit = safeLimit * (1 - reducePercent \/ 100); safeLimit = Math.max(2, Math.min(8, Math.round(safeLimit * 10) \/ 10));  let excess = Math.max(0, dailyHours - safeLimit); let recommendation = \"\"; if (excess === 0) { recommendation = \"✅ Your screen time within safe limits. Maintain current habits.\"; } else if (excess <= 2) { recommendation = \"🟡 Slightly above safe limit. Reduce by 30-60 minutes daily.\"; } else { recommendation = \"🔴 Significantly above safe limit. Implement break schedule and blue light filters immediately.\"; }  return { safeLimit, excess, recommendation, reducePercent }; } function getBreakSchedule(dailyHours, safeLimit) { let breakMinutes = 0; let breakFrequency = 0;  if (dailyHours > safeLimit) { breakFrequency = 20; breakMinutes = 5; } else { breakFrequency = 30; breakMinutes = 5; }  let breaks = [ `👁️ 20-20-20 Rule: Every ${breakFrequency} minutes, look at something 20 feet away for 20 seconds`, `🧘 Take a ${breakMinutes}-minute standing\/walking break every hour`, \"💧 Blink consciously 10 times every 30 minutes to refresh tear film\" ];  if (dailyHours > 6) { breaks.push(\"⏰ Set a timer on your phone or watch to remind you to take breaks\"); breaks.push(\"📵 No screens 60 minutes before bedtime\"); }  return { breakFrequency, breakMinutes, breaks }; } function getFilterSettings(deviceType, hasMacularDegeneration, useNightMode) { let settings = [];  if (deviceType === \"computer\") { settings.push(\"🖥️ Enable Night Light \/ Blue Light filter in Windows (Settings > Display) or macOS (Display > Night Shift)\"); settings.push(\"📉 Set color temperature to warmer (2700K-3000K) after 6 PM\"); } else if (deviceType === \"phone\" || deviceType === \"tablet\") { settings.push(\"📱 Enable Night Shift (iOS) or Night Light (Android) in Display settings\"); settings.push(\"🌙 Schedule automatic activation from sunset to sunrise\"); }  if (hasMacularDegeneration) { settings.push(\"🔵 Consider prescription blue-blocking lenses for glasses (ask your optometrist)\"); settings.push(\"📱 Set screen to 'Dark Mode' to reduce overall light emission\"); settings.push(\"💡 Use matte screen protectors to reduce glare\"); }  if (useNightMode) { settings.push(\"🌙 Use device 'Bedtime Mode' to grayscale screen 1 hour before sleep\"); }  settings.push(\"💡 Maintain ambient room lighting \u2014 never use screens in complete darkness\");  return settings; } \/\/ Build the calculator card const card = document.createElement('div'); card.className = 'calculator-card';  card.innerHTML = ` <\/p>\n<div class=\"card-header\"> <\/p>\n<h1>👁️ Screen Time & Blue Light Exposure Recommender<\/h1>\n<p> <pee>Adjusts limits for macular health & sleep disruption for seniors 55+<\/pee> <\/div>\n<p> <\/p>\n<div class=\"form-section\"> <\/p>\n<div class=\"row-2col\"> <\/p>\n<div class=\"input-group\"><label>📱 Daily Screen Time (hours)<\/label><input type=\"number\" id=\"dailyHours\" value=\"5\" min=\"0\" max=\"16\" step=\"0.5\"><\/div>\n<p> <\/p>\n<div class=\"input-group\"><label>🖥️ Primary Device Type<\/label><select id=\"deviceType\"><option value=\"computer\" selected>Computer \/ Laptop<\/option><option value=\"tablet\">Tablet (iPad, Kindle)<\/option><option value=\"phone\">Smartphone<\/option> <\/select><\/div>\n<p> <\/div>\n<p> <\/p>\n<div class=\"row-2col\"> <\/p>\n<div class=\"input-group\"><label>🩺 Macular Degeneration Diagnosis?<\/label><select id=\"macularDegeneration\"><option value=\"no\">No<\/option><option value=\"yes\">Yes<\/option> <\/select><\/div>\n<p> <\/p>\n<div class=\"input-group\"><label>🌙 Typical Bedtime (HH:MM)<\/label><input type=\"time\" id=\"bedtime\" value=\"22:30\"><\/div>\n<p> <\/div>\n<p> <\/p>\n<div class=\"row-2col\"> <\/p>\n<div class=\"input-group\"><label>🎂 Age<\/label><input type=\"number\" id=\"age\" value=\"68\" min=\"55\" max=\"100\" step=\"1\"><\/div>\n<p> <\/p>\n<div class=\"input-group\"><label>🌙 Use Night Mode \/ Blue Light Filter?<\/label><select id=\"useNightMode\"><option value=\"yes\" selected>Yes<\/option><option value=\"no\">No<\/option> <\/select><\/div>\n<p> <\/div>\n<p> <button id=\"calcButton\">Get Safe Screen Limit & Eye Protection Plan<\/button> <\/div>\n<p> <\/p>\n<div id=\"resultsPanel\" class=\"results-container\" style=\"display: none;\"><\/div>\n<p> <\/p>\n<div class=\"info-badge\"> 📘 Tool Basis: Based on American Academy of Ophthalmology and CDC screen time guidelines. Blue light exposure suppresses melatonin production (delaying sleep by 30-60 minutes). Seniors with macular degeneration have reduced retinal pigment epithelium function \u2014 blue light accelerates damage. The 20-20-20 rule is evidence-based for reducing digital eye strain. <\/div>\n<p> <\/p>\n<div class=\"disclaimer-box\"> ⚕️ Medical Disclaimer: This is an educational tool, not a medical diagnosis. Consult your ophthalmologist for personalized macular degeneration management. If experiencing sudden vision changes, eye pain, or flashes of light, seek immediate medical attention. <\/div>\n<p> `;  root.appendChild(card);  function updateRecommender() { let dailyHours = parseFloat(document.getElementById('dailyHours')?.value) || 0; let deviceType = document.getElementById('deviceType')?.value; let hasMacularDegeneration = document.getElementById('macularDegeneration')?.value === 'yes'; let bedtime = document.getElementById('bedtime')?.value || \"22:30\"; let age = parseFloat(document.getElementById('age')?.value) || 68; let useNightMode = document.getElementById('useNightMode')?.value === 'yes';  if (isNaN(dailyHours) || dailyHours < 0) dailyHours = 0; if (isNaN(age) || age < 55) age = 55;  const limit = calculateScreenLimit(dailyHours, deviceType, hasMacularDegeneration, bedtime, age); const breaks = getBreakSchedule(dailyHours, limit.safeLimit); const filters = getFilterSettings(deviceType, hasMacularDegeneration, useNightMode);  let deviceName = deviceType === \"computer\" ? \"computer\" : (deviceType === \"tablet\" ? \"tablet\" : \"phone\");  const resultsHTML = ` <\/p>\n<div class=\"result-card limit-card\"> <\/p>\n<h3>📊 Your Safe Screen Time Limit<\/h3>\n<p> <\/p>\n<div class=\"big-value\">${limit.safeLimit} hours\/day<\/div>\n<p> <\/p>\n<div>Current usage: ${dailyHours} hours\/day \u2192 ${dailyHours > limit.safeLimit ? '⚠️ ' + Math.round(limit.excess * 10) \/ 10 + ' hours over limit' : '✅ within safe range'}<\/div>\n<p> <\/p>\n<div class=\"meter-bar\">\n<div class=\"meter-fill\" style=\"width: ${Math.min(100, (dailyHours \/ limit.safeLimit) * 100)}%; background: ${dailyHours > limit.safeLimit ? '#c62828' : '#2e7d32'};\"><\/div>\n<\/div>\n<p> <\/p>\n<div style=\"margin-top: 6px;\">${limit.recommendation}<\/div>\n<p> <\/p>\n<div style=\"font-size:0.75rem;\">Adjusted for: ${hasMacularDegeneration ? 'macular degeneration (+40% reduction), ' : ''}age ${age}${limit.reducePercent > 10 ? ', bedtime proximity' : ''}<\/div>\n<p> <\/div>\n<p>  <\/p>\n<div class=\"result-card schedule-card\"> <\/p>\n<h3>⏰ Eye Rest Break Schedule<\/h3>\n<p> <\/p>\n<ul class=\"tips-list\"> ${breaks.breaks.map(b => `<\/p>\n<li>${b}<\/li>\n<p>`).join('')} <\/ul>\n<p> <\/p>\n<div style=\"margin-top: 6px;\">💡 Set a timer for every ${breaks.breakFrequency} minutes<\/div>\n<p> <\/div>\n<p>  <\/p>\n<div class=\"result-card filter-card\"> <\/p>\n<h3>🔵 Blue Light Filter Settings<\/h3>\n<p> <\/p>\n<ul class=\"tips-list\"> ${filters.map(f => `<\/p>\n<li>${f}<\/li>\n<p>`).join('')} <\/ul>\n<p> <\/div>\n<p>  <\/p>\n<div class=\"result-card warning-card\"> <\/p>\n<h3>💡 Senior Eye Health Tips<\/h3>\n<p> <\/p>\n<ul class=\"tips-list\"> <\/p>\n<li>\u2022 <strong>Annual dilated eye exam<\/strong> \u2014 critical after age 60 to detect macular degeneration, glaucoma, cataracts<\/li>\n<p> <\/p>\n<li>\u2022 <strong>Amsler grid test<\/strong> \u2014 monthly self-check for macular changes (ask your eye doctor for a grid)<\/li>\n<p> <\/p>\n<li>\u2022 <strong>AREDS2 supplements<\/strong> \u2014 vitamin C, E, zinc, lutein, zeaxanthin may slow macular degeneration progression<\/li>\n<p> <\/p>\n<li>\u2022 <strong>UV protection outdoors<\/strong> \u2014 wear sunglasses with UV400 rating even on cloudy days<\/li>\n<p> <\/p>\n<li>\u2022 <strong>Screen positioning:<\/strong> Center of screen 15-20 degrees below eye level, arm's length away<\/li>\n<p> <\/ul>\n<p> <\/p>\n<div style=\"margin-top: 10px; background:#e6f0fa; padding:10px; border-radius:14px; font-size:0.75rem;\"> 📞 <strong>Free resource:<\/strong> National Eye Institute (nei.nih.gov) | American Macular Degeneration Foundation (macular.org) \u2014 free Amsler grid and educational materials. <\/div>\n<p> <\/div>\n<p> `;  const resultsDiv = document.getElementById('resultsPanel'); if (resultsDiv) { resultsDiv.style.display = 'block'; resultsDiv.innerHTML = resultsHTML; } }  const calcBtn = document.getElementById('calcButton'); if (calcBtn) { calcBtn.addEventListener('click', updateRecommender); setTimeout(() => updateRecommender(), 50); }  \/\/ Additional copy protection document.addEventListener('copy', function(e) { if (e.target.tagName !== 'INPUT' && e.target.tagName !== 'SELECT') { e.preventDefault(); return false; } });  window.addEventListener('keydown', function(e) { if ((e.ctrlKey && e.key === 'a') || (e.ctrlKey && e.key === 'A')) { if (document.activeElement && (document.activeElement.tagName === 'INPUT' || document.activeElement.tagName === 'SELECT')) { \/\/ allow select all inside inputs } else { e.preventDefault(); return false; } } });  })();});<\/script><\/body><\/html>[\/et_pb_fullwidth_code][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”4.7.7″ _module_preset=”default”][et_pb_fullwidth_code _builder_version=”4.7.7″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″] Screen Time & Blue Light Exposure Recommender | Senior Eye Health 55+ [\/et_pb_fullwidth_code][\/et_pb_section]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[32],"tags":[],"class_list":["post-2134","post","type-post","status-publish","format-standard","hentry","category-tools-calculators"],"yoast_head":"\n<title>Screen Time & Blue Light Exposure Recommender - Transform Your Health. 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