Difference between revisions of 20-20-20 rule

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* Every 20 minutes, take a 5 minute break.<ref>{{Cite web |title=Eye Strain Awareness: Prevent Pseudo Myopia - Endmyopia |url=https://endmyopia.org/breaks-are-key-to-build-eye-strain-awareness/ |last=Steiner |first=Jake |website=endmyopia.org |access-date=2020-06-01}}</ref>
* Every 20 minutes, take a 5 minute break.<ref>{{Cite web |title=Eye Strain Awareness: Prevent Pseudo Myopia - Endmyopia |url=https://endmyopia.org/breaks-are-key-to-build-eye-strain-awareness/ |last=Steiner |first=Jake |website=endmyopia.org |access-date=2020-06-01}}</ref>


* Every 3 hours, take the longest break you can (half hour to hour) <ref>[https://endmyopia.org/how-to-improve-eyesight-five-steps/ How To Improve Your Eyesight: Just 5 Steps]</ref>
* Every 3 hours, take the longest break you can (half hour to hour) ([[3 hour rule]])<ref>[https://endmyopia.org/how-to-improve-eyesight-five-steps/ How To Improve Your Eyesight: Just 5 Steps]</ref>
* Take your break outside.  <ref>[https://endmyopia.org/must-read-going-outside-to-improve-your-eyesight/ Must Read: Going Outside To Improve Your Eyesight]</ref>
* Take your break outside.  <ref>[https://endmyopia.org/must-read-going-outside-to-improve-your-eyesight/ Must Read: Going Outside To Improve Your Eyesight]</ref>
* As you develop [[Strain Awareness]] you can customize your break schedule to your needs.
* As you develop [[Strain Awareness]] you can customize your break schedule to your needs.

Revision as of 15:59, 4 September 2021

The 20-20-20 rule is designed to be an easy to remember caution about doing too much near work and to give your eyes a break from eye strain regularly. This rule is supported by conventional optometry[1][2] and is a start towards the EM method.

  • Every 20 minutes
  • Look at something 20 feet away (6 meters)
  • For at least 20 Seconds

Endmyopia recommends even more breaks.

  • Every 20 minutes, take a 5 minute break.[3]
  • Every 3 hours, take the longest break you can (half hour to hour) (3 hour rule)[4]
  • Take your break outside. [5]
  • As you develop Strain Awareness you can customize your break schedule to your needs.

One more thing

The most commonly asked question about the 20-20-20 rule is: "Do I need to switch back to [normalized] every time I shift focus, for a break?"

The answer is: whatever you wish. However, it would make your life easier if you kept the focal plane you are already using, be it differentials or nothing depending on where you are in your journey, for breaks under 5 minutes. If you are taking a much recommended longer break; this is a good time to switch to normalized, in order to ensure you are not trading close up strain for excessive blur strain.

References

  1. "American Optometric Association 20-20-20 rule poster" (PDF). American Optometric Association. 2020-05-30. Retrieved 2020-05-30.Page Module:Citation/CS1/styles.css has no content.
  2. Nall, Rachel (2020-05-30). "20-20-20 rule: How to prevent eye strain". www.medicalnewstoday.com. Retrieved 2020-05-30.Page Module:Citation/CS1/styles.css has no content.
  3. Steiner, Jake. "Eye Strain Awareness: Prevent Pseudo Myopia - Endmyopia". endmyopia.org. Retrieved 2020-06-01.Page Module:Citation/CS1/styles.css has no content.
  4. How To Improve Your Eyesight: Just 5 Steps
  5. Must Read: Going Outside To Improve Your Eyesight