Recently, Zhongshan National Lighting Quality Supervision and Inspection Center (hereinafter referred to as “National Lighting Center”) was commissioned by a school in Zhongshan District to conduct lighting evaluation and testing on its classrooms. National lighting center inspectors in accordance with relevant standards, on blackboards and classroom desktops. On-site measurement of illuminance and illuminance uniformity was carried out in the same area.
The test found that some classroom lighting in the school had problems such as maintaining illumination and insufficient uniformity of the desktop and the blackboard. According to the relevant person in charge of the National Lighting Center, according to the requirements of the Ministry of Education and other eight departments to issue the “Integrated Prevention and Control Program for Myopia for Children and Adolescents”, some schools in Zhongshan have already carried out lighting renovation.
Pupils have a myopia rate of more than half
According to a study by the World Health Organization, there are currently 600 million myopia patients in China, and the rate of myopia among young people ranks first in the world. The myopia rate of high school students and college students has exceeded 70% and has increased year by year. The myopia rate of primary school students is also close to 40%.
What is the situation in Zhongshan? The doctors at the Zhongshan Ophthalmology Center affiliated to Sun Yat-sen University conducted a survey on the prevalence and incidence of myopia in primary school students in Zhongshan several years ago. At that time, 28 public primary schools were selected from Zhongshan City, and a total of 1670 people participated in this. In the survey, all students selected were 6 to 13 years old.
According to the survey results, the myopia rate of primary school students in Zhongshan City is 51.7%, which means that every 2 Zhongshan students have one nearsightedness. Among them, the myopia rate of boys is about 45%, the myopia rate of girls is about 57.3%, and the prevalence of myopia in girls is significantly higher than that of boys. At the same time, with the increase of age, the prevalence of low myopia decreased, and the prevalence of moderate myopia and high myopia gradually increased.
Myopia is the most important cause of poor eyesight in adolescents. According to Nie Xin, director of the Department of Ophthalmology, Bo’ai Hospital, Zhongshan City, the cause of myopia is closely related to genetic background and environmental factors.
“Lack of reading and writing posture, poor optometry, and mismatch between desks and chairs can cause optical defocusing myopia.” Nie Xin said that the high incidence of myopia in young people is closely related to the current living environment. “Now people’s living environment changes, the open space in the city is limited, children enter the educational institutions too early, young people work at close distances for a long time, and poor reading and writing habits, less outdoor activities, etc. can lead to myopia in the development of young people’s eyes, The teenage myopia, which has been rising year by year, has become a public health problem.”
Unqualified lighting environment is an important factor leading to myopia in children
Studies have shown that learning and home environment light sources are closely related to children’s vision 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 “Integrated Prevention and Control Program for Children and Adolescents with Myopia”, and proposed to incorporate the prevention and control of myopia and children’s myopia and the overall myopia rate into government performance appraisal indicators. By 2030, the myopia rate of primary school students will fall below 38%, the myopia rate of junior high school students will fall below 60%, and the myopia rate of high school students will fall below 70%.
The plan clarifies the prevention and control measures that families, schools, medical and health institutions, students, and relevant government departments should take. Among them, the school requires improvement of the visual environment: improving teaching facilities and conditions, encouraging the purchase of standards-adjustable adjustable desks and postures, providing students with a learning environment that meets eye hygiene requirements, strictly in accordance with ordinary primary and secondary schools, secondary occupations. School construction standards, implementation of lighting, lighting requirements such as classrooms, dormitories, libraries (reading rooms), and the use of lighting equipment for vision health. School classroom lighting standards meet the standard rate of 100%……
The reporter learned from the National Lighting Center that the center actively responded to relevant policies, relying on professional testing techniques and capabilities, and established a project to meet the classroom lighting and lighting projects in accordance with GB 7793-2010 “Classroom Lighting and Lighting Hygiene Standards for Primary and Secondary Schools”. Detecting ability, and obtaining relevant qualifications, and issuing authoritative test reports for government departments and enterprise customers. For non-compliance, timely provide suggestions for rectification according to standard requirements.
Through the actual measurement of classroom lighting, the National Lighting Center has further mastered the lighting conditions of classrooms in primary and secondary schools in Zhongshan City, providing reliable technical support for Zhongshan City to implement the “Integrated Prevention and Control Program for Myopia for Children and Adolescents” and to protect the visual health of young people.
Some schools in Zhongshan have already carried out lighting renovation
According to the relevant person in charge of the National Lighting Center, according to the requirements of the Ministry of Education and other eight departments to issue the “Integrated Prevention and Control Program for Children and Adolescents with Myopia”, some schools in Zhongshan have already carried out lighting renovation. The main problem in some classroom lighting is the maintenance of the desktop and the blackboard. Illumination and uniformity.
“Popularly speaking, when the lighting of the classroom needs to be replaced and replaced (generally according to the new fixtures decaying to 80% of the luminous flux), the entire blackboard needs to reach an illumination of more than 500lx on average, and the illumination in the darkest area of the blackboard cannot be lower than the average. 80%.” The person in charge suggested that during the home study work, local illumination can be added to enhance the illumination of the learning area. The brightness of the scene in the field of study work should be as uniform as possible. Do not appear too bright items or areas. A light source with a warmer shade is recommended.
In addition, there are a wide variety of functional lamps for students in the market, some claim to be able to prevent myopia, some can provide natural light, and so on. How to buy them? The person in charge recommends purchasing CCC mandatory certification and CQC energy certification. Signs of lamps. “CQC energy-saving certification is a voluntary certification. Enterprises that pay more attention to quality generally apply for CQC energy-saving certification to prove that the product can reach a higher quality level.”