Blue Light Filters

iPhone / iPad — Night Shift

1. Settings → Display & Brightness → Night Shift.
2. Schedule → "Sunset to Sunrise".
3. Color temperature slider — drag toward Warmer.
4. Auto-warms screen at sunset, returns morning.

Mac — Night Shift

1. System Settings → Displays → Night Shift.
2. Schedule → Sunset to Sunrise.
3. Slider toward warmer.
4. Same idea, different menu.

Windows — Night Light

1. Settings → Display → Night light.
2. Toggle ON.
3. Schedule → Sunset to Sunrise.
4. Slider for strength.

Android — Night Light / Comfort View

• Settings → Display → Night Light.
• Schedule + intensity.
• Pixel calls it "Night Light". Samsung calls it "Comfort View" or "Eye Comfort Shield".

Blue light glasses — research mixed

• 2024 Cochrane review found weak evidence for blue light glasses.
• BUT — many people SAY they help with eye strain.
• If you want to try, $20 from Amazon is fine. $80 brands no better.
• Real benefit might be the screen breaks they remind you to take.
• Built-in screen filters are free + work as well.