Quote:
Originally Posted by LuBiB
Here's a link to the professor/ophthalmology genius my friend worked for: Dr. James Sheedy - this guy was an apparent magician in the field and was published everywhere in everything pertaining to studying the eye.
In one of the MILLIONS (might be a little exaggerated) of studies he's done, my friend stated they always lead to the idea that reading on backlit screens for times over 20 minutes lead to eye strain and vision degradation.
I'll see if i can pull up some more precise studies on this from her. |
The basics between reading a book from sunlight and reading a text from an LCD screen is still the same!
It all bases on photons being radiated from the screen's surface or reflected from a book's surface.
Technically there's no difference between reading from LCD screen, and reading a book under a TL (except then that the LCD filters out horizontal or vertical light waves).
Vision degradation comes from always staring at the same screen from the same distance for prolonged time. It's the same as staring to the same book from a same distance for prolonged time. Most baby boomers wearing glasses have it from reading books. Most x-generation have it from computer and TV screens with too high bright settings and radiation levels.
LCD does not radiate 'dangerous' (for the eye) radiation like a CRT.
Most late 80's and later CRT's have a filter to filter out this radiation.
Modern LCD's that are based on LED lights, have even less an issue with radiation.