A: Looking at your phone with one eye open

There’s a report in the “New England Journal of Medicine” this week about two women who temporarily went BLIND in one eye from using their phones in the dark.

Now, it only happened because they had one eye covered by the pillow and the other one looking at the phone.  The one that was looking at the phone got used to that bright light and temporarily stopped working once the phone was off.

The good news is their vision came back quickly and it doesn’t look like they’re going to have permanent damage.

But it sounds bad enough that maybe you should ALWAYS use two eyes to look at your phone.

(LiveScience)