"Teens and young adults who spend more time outdoors may be less likely to become nearsighted later in life than those who spend less time outdoors, a new study suggests.
People in the study who spent more time exposed to ultraviolet B (UVB) radiation — which the researchers calculated based on the participants' exposure to sunlight — between ages 14 and 39 were less likely to be nearsighted at 65 than those who spent less time exposed to UVB radiation, the researchers found.
"Increased UVB exposure was associated with reduced myopia, particularly in adolescence and young adulthood," the researchers wrote in the study, published yesterday (Dec. 1) in the journal JAMA Ophthalmology. Myopia is a term that eye doctors use for nearsightedness, where people can more clearly see objects if they are closer."
Wrong. I say teens and young people who spend all their time indoors are more likely to be nearsighted, not just due to lack of sunlight, but mainly because they are constantly staring at and using their cell phones 24/7, 2 feet from their face! Doing that for years will train your eyes to see clearly things that are close but near zero training on focusing clearly on things that are far away, due to not looking at things farther away than your cell phone. Duh.
can't start 'em too young. or can you?