17. Reading a Computer Screen
isHarder than Reading Paper
Books, computers, and e-readers (such as kindles) all
have their pro's and con's. Unfortunately for reading,
there's some pretty big problems.
Books
Books reflect light, does
not tire the eyes, but also
cannot be read without a
light source.
Computer Screens
An image on the screen,
although it doesn't seem like
it, is constantly refreshing.
This constant refreshing (in
combination with the emitted
light), is what strains our
eyes.
E-Readers
E-readers similar to a Kindle Paperwhite
use what's called "electronic ink" that
mimics a book. This "electronic ink"
reflects light and doesn't constantly
refresh. In fact, in some of the newer
models, they actually have a backlight
that doesn't emit blue light so you can
read at night without the strain.