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Originally Posted by Merovee
How do these affect the eyes long term? Something we should know before we rush to equip our students with e-readers.
Perhaps paper books are better when it comes to ergonomics?
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E-readers which use e-ink (which is all of them apart from the iPad which is actually a tablet computer, not just an e-reader) are actually very easy on the eyes since they do not use backlit screens. They look just like a piece of paper except they have no yellow tint so I don't think they will have any long term affect on the eyes. The white of the screen is a tad darker than the white of paper books but as long as it's properly lit, it's not any harder to read and as the technology progress, the contrast is getting better and better. It's really quite remarkable how paper-like the screen is and you really can't judge it until you've seen it in person (pictures don't do it justice).
In fact, because you can change the size of the text with e-ink (and with some, the font type and line spacing), it is arguably better for the eyes because you can format the text to suit your eyes. People who can only read larger print paper books benefit greatly from this feature.
E Ink - Wikipedia, the free encyclopedia
Besides which, millions of people spend hours everyday in front of a computer and the long term affect on our eyes isn't a huge concern for most. But even so, e-ink is not the same thing as a computer monitor at all.