Eye HealthLifestyle Topics
"No Rub" a No Go
To prevent infection, use the "rub and rinse" method to clean your contacts, even with "no rub" solutions.
Eye Protection at Home
Every household should have at least one pair of ANSI-approved protective eyewear for risky activities.
Blood Sugar and Eye Exams
Control your blood sugar for several days before a routine eye exam to ensure you get a proper prescription for eyeglasses.
Tell Your MDs All Your Rx
If you have glaucoma, tell your Eye MD all medications you take, and tell your other doctors about your glaucoma medication.
Sleep Apnea and Glaucoma
Research shows that those with sleep apnea are more likely to develop glaucoma. Get treated to save your sight.
What Is an Ophthalmologist?
Are You Fit at 40?
A baseline eye exam is recommended at age 40, when the signs of disease and changes in vision may start to occur.
More Time Outdoors May Reduce Kids' Risk of Nearsightedness
Encouraging children to spend more time outdoors may be a simple and cost-effective way to improve their vision as well as general health, according to several recent studies. They add to the growing evidence that spending time outdoors may lower the risk of nearsightedness in children and adolescents. Nearsightedness is more common today in the United States and many other countries than it was in the 1970s.
One of the new studies showed that for each additional hour children spent outdoors per week, their risk of being nearsighted dropped by about two percent. Nearsighted children in this study spent on average 3.7 fewer hours per week outdoors than those who either had normal vision or were farsighted. The study investigated whether children who logged more outdoor time also spent less time performing near work, such as playing computer games or studying, but no such relationship was found.
A second study found that when schoolchildren were required to spend 80 minutes of recess time outdoors every day, fewer of them became nearsighted when compared to children who were not required to spend recess outdoors. Another study, with Danish children, was the first to show that the rate of eye growth varies in relation to exposure to daylight. This is important, because if the eye grows too long, as measured from front to back, the child will be nearsighted. The children’s eye grew normally during the long days of summer in Denmark, but grew too fast during the short days of winter.
Though researchers don’t yet know exactly why outdoor time is beneficial, they think it’s probably related to exposure to daylight rather than to playing sports or other specific activities.
Future studies are planned to learn more about how time outdoors supports healthy vision. Questions include whether time spent on near work should be limited, and whether there are factors—like parents' attitudes, access to safe playgrounds, or others—that may result in nearsighted children spending less time outdoors. More research is also needed to explain how much of the outdoor time benefit comes from daylight exposure and how much from exercising distance vision, since both of these may be key factors in preventing nearsightedness.