20-20-20 Vision is important for your health at office or homework because it is preventing your eyestrain.
20-20-20 Vision means that you take pause 20 second from monitor, go around 20 minutes outside or getting air at windows from the office or homework and 20-30 inc (50,8 cm – 76.2 cm).
Color temperature is important to use for monitor then let you know how to use night mode at:
Google Chrome at Android, computer and iPhone/iPad
Dark mode theme at Firefox
- Open the Settings app
- Click “Display,” then toggle “Dark theme” on
Dark Mode in iOS 13:
- Tap on the Settings app
- Scroll down and tap on “Display & Brightness”
- Select “Dark Mode”
Read more at
Eyestrain – Diagnosis and treatment – Mayo Clinic
10 ways to address eye fatigue caused by displays