Myopia is becoming more common illness. By 2050, this disorder will affect almost 4.8 billion people, 2.8 billion more than in 2010. In China, where more than 90 percent of young people are short-sighted, it is considered an epidemic.
Scientist: a person can live to 120 years
While those who wear glasses, usually blamed for weak vision genes, genetics alone do not explain this quickly developing problem. Experts say that we underestimate how much our vision depends on the environment and, in particular, from being outdoors. Today there are more studies that suggest that the time spent with friends on the street, can reduce the risk of myopia in children.
In addition, being in the open air, you cause the eye to look into the distance, vital for vision component is the impact of external lighting, as it slows axial growth of the eye which helps myopia.
“After your baby is born, you are already on a lot can influence, so it is important to understand that the time spent indoors for daily activities, increases the risk of myopia,” says Kathy Williams (Katie M Williams), an employee of king’s College London and co-author of the study published in the journal British Journal of Ophthalmology.
The study involved 991 1 twin, all born in the period 1994-1996 in the UK. During the first 16 years of their lives, the researchers analyzed the development and behavior of each child by using questionnaires and tests, and monitor the status of their vision. The results were quite unusual.
For example, the study showed that children born after successful treatment of infertility by their parents, the chance of developing myopia by 25-30 percent lower than their peers. According to Williams, this may be partly due to the fact that babies born after fertility treatment have a tendency to decrease weight after more than inadequate stay in the womb and according to some reports, the delay in development and reduced cognitive performance.
In addition, the researchers found that those born in the summer of myopia develops twice as often. Most likely, this is due to the fact that children start going to school before many of their peers. The scientists also found that the chances of developing myopia increase by 33 percent under a high level of education of the mother. Scientists suggest that this may have something to do with the connection to intelligence and myopia, but recognize that factors such as social status and financial situation also play a role.
And of course, we cannot forget about technology. In a study of twins hours spent playing computer games in early adolescence also increased the chances of becoming nearsighted. And not just because the screen affects the eyes (of course, it is a fact), but because the child spends a little time outdoors. This is a relatively new phenomenon, which was found to harm the development of the eye.
However, scientists emphasize that rare stay outdoors only correlates with myopia, but does not cause it, and the impact of device use on the human body still needs research.