3 hour rule: Revision history

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26 January 2023

9 February 2022

9 September 2021

4 September 2021

  • curprev 15:5215:52, 4 September 2021Shaerah talk contribs 479 bytes +479 Created page with "The 3 hour rule is a suggestion to keep a balance between near work and time spent using distance vision and reduce eye strain. This can be an effective alternative to the..."