Or nearly as much strain as your mom told you. I always thought LCDs with progressive scan output and fast refresh rates eliminated much of the concern about “TV being bad for your eyes,” like I was constantly told when I was a kid. I thought the old CRTs (tube televisions) were bad because they ran interlaced video and had a slow refresh rate, which meant you could see flicker. (Apparently I was somewhat right in this, as it’s mentioned in the article.)

There are of course pluses and minuses to any reading technology, whether ink on paper, e-ink, or backlit displays (usually LCDs). Head on over to The New York Times for the article if you’re interested.