Tuesday , February 7 2023

Lack: why so many children need glasses?


A study by the British Journal of Ophthalmology concluded that children could reduce myopia's short-sightedness by spending more on the open air.

In a study of 1,077 individuals, researchers discovered that while genetics is a factor in the equation, controlled environmental factors such as playing video games also affect the possibility of a child becoming short-sighted.

Those who played video games at the early adolescence were proportionally larger, reaching short-sightedness for short-sightedness, which, according to the researchers, is associated with less time spent in the open air.

"A healthy balance of time in the field and in balance in early education is important," the study's author Katie Williams told The Guardian.

In addition, the researchers found that children born in the summer, where they are more likely to have short-sightedness than their peers, is the fact that researchers have acquired earlier access to the education system due to changes in the proximity short-sighted apple shape.

Despite the fact that only a quarter of the world's young population is diagnosed as short-sighted in 2000, this figure is expected to increase to more than half of the world's population by 2050, especially in Asia, where this number could rise to 90% .

So, why so many young people develop myopia?

Having short-sighted parents is a risk factor for the proximity of the eye, but the current epidemic is due to "acquired not genetic", according to a recent summary published Development of retinal and eye studies.

A clear answer may seem to be to increase the time children and young people spend in front of the screen. But the actual explanation may not be so easy.

Instead of exposing themselves to eye damage, it can blame the social life of more and more abusive children and young people.

Looking at a smartphone or computer screen, it is a "close-up" form, ie activities related to close-up planning, such as reading, viewing a television, or sewing, which is really associated with an increased risk of short-term vision.

However, this risk can be offset by spending time outside. "There is now a consistent evidence that children who spend more time in the open air are less likely to be or are short-sighted," writes the researchers.

This theory could explain why the myopic epidemic is particularly prevalent in cultures with high pressures in the educational environment, usually with long hours of study and a short time outdoors.

"In the 1950s, about 20 to 30% of 20-year-olds in Hong Kong, Taiwan, and South Korea suffered from short-sightedness," compared with more than 80% today, says Bloomberg.

This hypothesis also applies to populations with a small screen effect – Studies in Israel show that Orthodox Jewish boys who have spent a long time in printed religious scriptures suffer from a much higher rate of short-sightedness than their timely colleagues.

Experts have estimated that two hours per day on the outside can reduce the risk of short-sightedness short-sightedness in the short-sighted road. However, parents' anxiety, demanded homework schedules and increased electronic entertainment are increasingly conducting children at home. The poll of 2016 found that 74% of UK children between the ages of 5 and 12 spent less than one hour per day outdoors, less than outdoor time spent on inmates.

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