Blue Light Filters
Easier on senior eyes.
iPhone Night Shift
FREE. Settings → Display & Brightness → Night Shift. Auto sunset to sunrise.
Android Night Light
FREE. Settings → Display → Night Light.
f.lux on computer
FREE. Reduces blue light on Mac and Windows. Worth installing.
Blue light glasses
$20-$80. Studies mixed but many seniors swear by them.
Better sleep
Avoid screens 1 hour before bed. Bigger impact than any filter.
Macular degeneration
Some studies link blue light to AMD progression. Filter as precaution.
Quick Tip: Set Night Shift to 7 PM-7 AM. Eyes thank you within a week.