How to Turn Off Blue Light on Your iPad
Activating Night Shift Mode
1. “Settings"
2. “Display & Brightness”
3. Enable “Night Shift." (This will lead you to the Night Shift configuration panel, where you can customize activation & intensity.)
Customizing Night Shift Settings
1. Scheduling Night Shift: option to schedule Night Shift to activate automatically during specific time frames, such as sunset to sunrise or custom schedules tailored to your preferences.
2. Adjust Color Temperature: to adjust color temperature of display to reduce blue light emission, promoting a warmer & less intense visual output during nighttime usage.
Adjusting screen brightness to a comfortable level, taking regular breaks from prolonged screen use & using external accessories such as Blue Light-Filtering Screen Protectors or Specialized Eyewear designed to mitigate blue light exposure.
https://robots.net/how-to-guides/gadget-usage/ipad-users-guide-turning-off-blue-light-for-better-viewing/