Comment on Ask HN: Please share tips and strategies for dealing with eye strainComments−AnimalMuppet3y20 seconds of looking at something at least 20 feet away every 20 minutes. (The rule might be every 2 hours - I forget. Doing it every 20 minutes won't hurt, though.)
Comments
20 seconds of looking at something at least 20 feet away every 20 minutes. (The rule might be every 2 hours - I forget. Doing it every 20 minutes won't hurt, though.)