Two women went temporarily blind from constantly checking their phones in the dark, say doctors who ... and it is easily avoidable if people stick to looking at their smartphones with both eyes.

Two women went temporarily blind from constantly checking their phones in the dark, say doctors who ... and easily avoidable, if people stuck to looking at their smartphones with both eyes.

Open up Instagram at any given moment and it probably won’t take long to find crisp pictures of the night sky, a skyline after dark ... can look quite different from what the person taking ...