资讯

Short-sightedness can be corrected by placing a concave lens in front of the eye, as shown in the diagrams below. Someone who is long-sighted can see distant objects clearly, but they cannot focus ...
Around one in three children worldwide are short-sighted, a new study has found ... to carry out one of the largest studies of the eye condition to date. Medically speaking, myopia happens ...
Whether we are short or long sighted is determined by the length of ... of the hormone dopamine in the retina at the back of the eye. It’s this hormone that slows down the growth of the eyeball.