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Written by: Huang Weilun
2020-04-03 14:03
Last updated: 2020-04-03 14:03The epidemic of COVID-19 new type of coronavirus pneumonia continues, and many school children suspend classes without stopping and study online at home. Some surveys show that nearly half of the students have experienced dry eyes or other eye discomforts when using electronic products for online learning, and about one adult has experienced eye pain; some interviewees also said that they had had eye inflammation or their eyes gradually became gradual Vague situation.
Some doctors suggested that students should blink more during the e-learning to increase the secretion of tears, and keep the proper distance between the eyes and the screen of the tablet more than 40 cm.
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Orbis completed the "e-learning and eye health survey" in March in the form of an online questionnaire, and collected 427 valid questionnaires. The respondents included 212 elementary school students, 121 middle school students, 31 college students, and 63 kindergarten students Or their parents.
The survey found that 86.4% of respondents said that during the suspension period, students increased their daily use of electronic products due to online learning. In addition, 49.7% of the respondents said that they had felt uncomfortable when using electronic products, 40.9% had felt dry eyes, 10.7% felt eye pain, and 8.6% had ever had watery eyes. Orbis said that individual interviewees said that their eyes had been inflamed or blurred.
Nearly 40% of students use electronic products without maintaining a distance of at least 40 cm
Orbis said that students' awareness of eye protection is relatively weak. The survey shows that nearly 40% of the respondents use electronic products with a screen distance of less than 40 cm from their eyes; more than 70% of respondents said that when using electronic products Do not rest at least 20 seconds every 20 minutes. However, the survey also found that parents of kindergarten students have relatively high eye-care awareness, with 50.8% saying that children use electronic products to rest at least 20 seconds every 20 minutes.
In the third grade of kindergarten, Zeng Yulin (left) and two-and-a-half-year-old sister Zeng Yuhua (right) wear anti-blue light glasses to protect their eyes every time they use electronic products. (Courtesy of Orbis)
Li Weiwei, an obsessive ophthalmologist at Orbis, pointed out that the most useful way to prevent students from deepening myopia is to maintain an appropriate distance between the eyes and the screen, and to limit the time for using electronic products. (Courtesy of Orbis)
Orbius volunteer ophthalmologist Li Weiwei said that the best way to prevent students from deepening myopia is to maintain an appropriate distance between the eyes and the screen, and to limit the use of electronic products. She went on to point out that if using a tablet computer, the distance between the eyes and the screen should be more than 40 cm; if using a computer, due to the larger screen, it should be more than 70 cm.
Li Weiwei reminded parents and students that after using electronic products for 20 minutes, they should look away from 20 feet away for at least 20 seconds to avoid deepening myopia or increasing the risk of other eye diseases. She also said that if you want to use electronic products for a long time, you should pay more attention to blinking your eyes to increase the secretion of tears and evenly cover the surface of your eyes. If necessary, you can moisturize your eyes with artificial tears without preservatives.
Regarding screen filters for parents who buy blue-ray glasses and electronics for their children, Li Weiwei said that there is no scientific evidence that both can slow down the children's myopia, but if the product can reduce light, it can increase eye comfort. As for supplements such as "blue light pills", she said that it was not as important as maintaining a balanced diet.
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