vision

In a new study, an easy-to-use app did just as good a job as the machines in an eye doctor's office. That's a boon for people in low-income countries — and really for anyone with vision issues.

If you're not a bit farsighted at age 6, you're much more likely to be nearsighted by age 12, a study of thousands of children finds. A simple eye refraction exam can spot it early on.

More than 80 percent of high school students in Shanghai are myopic. A new study finds a link between higher income and poor eyesight. But the root cause is still hotly debated.

Landing an airplane is one of the most difficult piloting techniques to master, and the stats show it: 36 percent of all airplane accidents and 25 percent…