Quote:
Originally Posted by pazos
The main difference is that the fovea is looking at the screen while reading, not at the candle. The rest of the eyes, composed mainly by rodes, have almost no role in visual acuity, but there are a few cones there too that serve for acommodation purposes.
In short: light distribution over the retina matters.
I'm talking about the behaviour of the eye, not really about our perception of it. If the brain/experience has some role then we're talking about constructivism and that's another topic.
Links:
Wikipedia article about the fovea
visual axis of the fovea
ergonomics: lux levels for outdoor/indoor |
I was about to give my worthless anecdote before I came upon your posts (I had no idea of this science).
So I'm guessing if we want to read at night, it's better for our eyes to:
a. read in a lighted room,
b. prefer using a non-frontlit e-reader over a frontlit reader or LCD. If the ambient light where you are seated is not enough, then attaching an auxiliary booklight to the non-frontlit e-reader is slightly preferable to a frontlit e-reader with its more uniform light (the auxiliary booklight generally won't reflect evenly across the e-reader, so the distribution of light over your retina is more varied.
In your judgement are those the correct best practices for e-reading at night?