Two doctors stated in the New England Journal of Medicine that users who use smartphones in the dark can suffer from temporary blindness.
This has already happened to some women, aged 22 and 40 respectively, who suffered from temporary blindness for months as a result of using their smartphones in the dark. The form of the disease is called "transient smartphone blindness".
The two women were periodically checked by the doctors, the doctors subjected them to detailed tests, but the doctors could not say, in the first instance, what was wrong with them. That is until one of the doctors asked the two women what happened before the first episode of this kind appeared. The answers were the same, both patients stated that they were looking at the smartphone with one eye open, in the dark, while lying on their side in bed. Thus, the visual field of one of the eyes was obstructed by the pillow. Obviously, one of the eyes adapted to the light, and the other to the dark.
"So you have one eye adapted to the light because it's looking at the phone and the other eye is adapted to the dark," said Plant, one of the doctors.
Shortly after they closed their smartphones, the women could no longer see with their eyes open. Fortunately, this temporary loss of sight in one eye had no side effects in the medium and long term on the sight of the two patients.
Doctor Plant recommends us to look at the smartphone screen, when we are in a dark space, with both eyes.
"People frequently use smartphones while lying down, when one eye can be inadvertently covered. Smartphones are now used nearly around the clock, and manufacturers are producing screens with increased brightness,"
