nearsightedness

The good news is that myopia can be corrected by a trained eye doctor prescribing eyeglasses, contact lenses or laser surgery. Also, we can change behavior to modify the risks that modern lifestyles put on our vision.
Soaring nearsightedness -- driven by staring at computer screens -- "is a true global health crisis."
Earlier-born children are thought to sometimes get more attention from their parents, presumably because their parents are less busy with other children. And that extra attention may be harming first-borns in an unexpected way.
Pinpointing the causes of increased vision loss in children and youth is not facile. Some explanations for increased vision loss point to the digital age as the culprit. The bottom line is that we expose our eyes to conditions and prolonged focus that contribute to persistent eye strain and potential vision loss over the long term.