School whiteboards a danger to eyesight (Times)

This is something I’ve been wondering about for a while. I don’t think that these would have any effect if only used for a little while at a time, but if they are placed in all classrooms and are expected to be used for long periods each day, then it’s clearly not going to be good for teachers’ eyesight. Every time I’ve used them, the bright light has annoyed me. I’m certain that this is a greater health risk than the chalk dust from a good old black board. But this is a cleaner solution, and therefore necessarily better in the eyes (no pun intended) of some.