3 ms·
Counter-intuitive, but a reflective screen is potentially more damaging to the eyes than a transflective (illuminated) one because with the reflective one, the
by marvindanig 5y ago
Counter-intuitive, but a reflective screen is potentially more damaging to the eyes than a transflective (illuminated) one because with the reflective one, the reader has to depend on the ambient lighting entirely. Many times the flux of light falling into the retina of a reader may not be enough and prompt the pupil to open more widely than required, and set them eyes up for quicker degradation.
- nicoburns 5y agoI thought it was the other way around. Pupil dilation tends to be based on ambient light, so the closer the screen intensity matches ambient light the better.
- marvindanig 5y agoYes, but a dimly lit room will cause more exertion on the pupillary muscles anyway, because the flux of light is way too low for all types of focused activity like reading. Both undivided attention and the flux of light have a significant influence on the pupillary state of the eyes. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4634867/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4634867/