Zhongshan, Guangdong: some schools have carried out lighting transformation to prevent and control juvenile myopia
recently, the national lamp quality supervision and Inspection Center (Zhongshan) (hereinafter referred to as "national lamp Center for many years") was entrusted by a school in the western district to evaluate the lighting effect of its classroom. The inspectors of the national lamp Center conducted illumination tests on blackboards, classroom desktops and other areas according to the requirements of relevant standards Illumination uniformity is measured on site
the detection found that some classroom lighting in the school had problems such as insufficient illumination and uniformity of the desktop and blackboard. Micromotor liquid universal experimental machine: according to the relevant person in charge of the national lamp center, according to the requirements of the implementation plan for comprehensive prevention and control of myopia in children and adolescents issued by the Ministry of education and other eight departments, some schools in Zhongshan have carried out lighting transformation
the myopia rate of primary school students is more than half
according to a research report of the World Health Organization, at present, there are 600million myopia patients in China, and the myopia rate of teenagers ranks first in the world. The myopia rate of high school students and college students has exceeded 70% and increased year by year, and the myopia rate of primary school students is also close to 40%
how about Zhongshan? Doctors from Zhongshan Eye Center affiliated to Sun Yat sen University investigated the prevalence and incidence of myopia among primary school students in Sun Yat Sen several years ago. At that time, 28 public primary schools were selected from Sun Yat Sen, and a total of 1670 people participated in the survey. All the students selected were aged 6 to 13
the survey results show that the myopia rate of primary school students in Zhongshan is 51.7%, which means that every two primary school students in Zhongshan have one myopia. Among them, the myopia rate of boys is about 45%, and that of girls is about 57.3%. The prevalence of myopia in girls is significantly higher than that in boys. At the same time, with the increase of age, the prevalence of low myopia increased gradually, because the simple 200kn tensile testing machine could not complete the tensile test of 5kn material
myopia is the most important cause of poor vision in adolescents. According to Nie Xin, director of Ophthalmology at Zhongshan Boai hospital, the cause of myopia is closely related to genetic background and environmental factors
"poor reading and writing posture, poor optometry and glasses, mismatched desks and chairs can cause optical defocusing myopia." Nie Xin said that the high incidence of juvenile myopia is closely related to today's living environment. "Nowadays, people's living environment has changed, the open space in the city is limited, children enter educational institutions too early, teenagers do homework at close quarters for a long time, poor reading and writing habits, and less outdoor activities can all lead to myopia among teenagers in the development stage, and the increasing myopia among teenagers year by year has become a public health problem."
unqualified lighting environment
is an important factor leading to children's myopia
research shows that environmental light sources for learning and home are closely related to children's visual health, and unqualified lighting environment is an important factor leading to children's myopia. Reading and writing should be carried out in an environment with good lighting and sufficient lighting. In 2018, the Ministry of education and other eight departments jointly issued the implementation plan for the comprehensive prevention and control of myopia in children and adolescents, proposing to include the prevention and control of myopia in children and adolescents and the overall myopia rate into the government performance evaluation indicators. By 2030, the myopia rate of primary school students will be reduced to less than 38%, that of junior high school students to less than 60%, and that of senior high school students to less than 70%
the plan defines the prevention and control measures that should be taken by families, schools, medical and health institutions, students and relevant government departments. Among them, the school requires to improve the visual environment: improve teaching facilities and conditions, encourage the purchase of adjustable desks and chairs and sitting posture orthotics that meet the standards, provide students with a learning environment that meets the requirements of eye hygiene, strictly follow the construction standards of ordinary primary and secondary schools and secondary vocational schools, implement the lighting and lighting requirements of classrooms, dormitories, libraries (reading rooms), and use lighting equipment that is conducive to visual health. The compliance rate of school classroom lighting hygiene standards is 100%...
the reporter learned from the national lamp center that the center actively responded to relevant policies, relied on professional testing technology and ability, and established the testing ability to meet the whole project of classroom lighting and lighting in accordance with GB "Hygienic Standards for lighting and lighting in primary and secondary school classrooms", and obtained relevant qualification recognition to issue authoritative testing reports for government departments and enterprise customers, In case of non-compliance, timely provide rectification suggestions according to the standard requirements
through the actual measurement of classroom lighting, the National Lighting Center has further mastered the lighting status of primary and secondary school classrooms in Zhongshan City, providing reliable technical support for the implementation of the implementation plan for the comprehensive prevention and control of myopia in children and adolescents in Zhongshan City and the protection of adolescent vision health
some schools in Zhongshan have carried out lighting transformation
according to the relevant person in charge of the National Lighting Center, according to the requirements of the implementation plan for the comprehensive prevention and control of myopia among children and adolescents issued by the Ministry of education and other eight departments, some schools in Zhongshan have carried out lighting transformation, and the main problems in the lighting of some classrooms are the maintenance illumination and uniformity of desktops and blackboards
"generally speaking, when the lamps and lanterns in the classroom need to be maintained and replaced (generally when the newly installed lamps are attenuated to 80% luminous flux), the whole blackboard needs to be set for 501 times on average and can be completed in sequence; the illuminance is more than 0lx, and the illuminance in the darkest area of the blackboard cannot be less than 80% of the average." The person in charge suggested that in the process of family study and work, local lighting can be increased to strengthen the illumination of the study area. The brightness of the scene in the field of vision of study and work should be as uniform as possible, and there should be no objects or areas that are too bright. If it is illuminated at night, it is recommended to use a light source with a warm tone
in addition, there are a wide variety of functional lamps for students in the market. Some claim to be able to prevent myopia, and some can provide natural light. How should citizens choose? The person in charge suggested to purchase lamps with CCC compulsory certification and CQC energy-saving certification marks. "CQC energy saving certification is a voluntary certification. Enterprises that pay more attention to quality generally take the initiative to apply for CQC energy saving certification to prove that products can reach a higher quality level." (Zhang Xiangyu) (editor in charge: Intern (Cao Wen), Xiong Xu)
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