5 ms·
I'm not an M.D. or similar, but this is good advice: Q: What's the 20-20-20 rule? A: People get on the screen and they don't take their eyes off for way too l
by ableal 17y ago
I'm not an M.D. or similar, but this is good advice:
Q: What's the 20-20-20 rule?
A: People get on the screen and they don't take their eyes off for way too long. We recommend that every 20 minutes, they look at least 20 feet away for 20 seconds. We're taking the eyes from this turned-in contracted muscle position and stretching them out for a short period of time.
- jseliger 17y agoAgreed. Unless you're in a state of flow that would be disrupted by 20 seconds of staring into space. This probably isn't always the case—when I'm working, I sometimes look out and think—but much of the time it probably is.
- jessriedel 17y agoIs there anything beside intuition that makes you think this would help anything? It seems plausible to me too, but I have zero evidence that it would help anyone's eyes.
- ableal 17y agoThree reasons: it sounds reasonable, because the eye muscles are probably not 'designed' for prolonged use in short distance focus. Second, I've seen similar things mentioned from other sources, which also seemed credible. Third, my experience - I can't abuse my eyes the way I did twenty years ago, and the "pause and look at a distant thing" seems to help. Actually, I prefer 20 yards/meters or more, instead of just 20 feet.