Retrieved from 2015-11-20 SenTian Academic Information
Reprinted from “Kandler”
Introduction: Myopia in children is characterized by abnormal regulation, progressiveness, and vulnerability to multifactorial interference. Studies have found that more sun exposure can prevent myopia in children and reduce the risk of developing myopia to a greater extent.
Myopia in children is a type of myopia, a refractive error that has different characteristics than adult myopia. Myopia (nearsightedness) is a refractive state in which parallel light rays pass through the refractive system of the eye and fall in front of the retina at the point of refraction when the eye is relaxed. Myopia in children is characterized by abnormal regulation, progressiveness, and susceptibility to multifactorial disturbances that occur during childhood.
Researchers from the Australian Council for Scientific Research (ACSR) compared the populations of Singapore and Australia and found that as many as 90% of Singaporeans graduate from schools with “myopia”, compared to about 20% in Australia; 30% of six- and seven-year-olds in Singapore have myopia, compared to 1.3% in Australia We were intrigued.
“We were intrigued that for a country like Australia, where citizens are so highly educated, the number of people with myopia is really very low.” Lead researcher Ian Morgan said that people in Singapore and Australia spend similar amounts of time reading, watching TV and playing computer games each day, but there is a big difference in the length of time spent outdoors. The average child in Singapore spends 30 minutes outdoors per day, compared to two hours for Australian children. This suggests that a certain amount of outdoor activity is a “myopia prevention”.
Another study found that children who spend their winters indoors and rarely go outdoors in the sun generally show symptoms of vitamin D deficiency – weakness and bone tenderness, etc. The sclera at the back of the eye of children and adolescents with this physique is affected and is prone to scleral decalcification, elongation of the eye axis, and eventually myopia. Therefore, it is recommended that children often go outdoors in the sun to make their skin receive more ultraviolet rays and create sufficient vitamins for the organism.
Researchers suggest that two to three hours of sunlight a day can help children’s eye function develop and reduce the risk of myopia to a greater extent.