——Mengxi Experimental Middle School's eye-friendly lighting upgrade shows notable results
To implement the requirements for student myopia prevention and control and continuously improve classroom lighting conditions in primary and secondary schools, recently, under the coordinated promotion of the education department of Muyang City,Mengxi Experimental Middle School successfully completed the classroom eye-friendly lighting renovation work. The renovation work strictly followed the Hygienic Standard for Day Lighting and Artificial Lighting for Middle and Elementary School (GB 7793), systematically upgraded the classroom lighting environment, and achieved notable results.
[Figure 1: Installation effect of eye-friendly lights for the writing board in a classroom of Mengxi Experimental Middle School]
Aligning with the GB 7793 standard, systematically implementing lighting renovation
This renovation was based on GB 7793—2010 / 2025 Hygienic Standard for Day Lighting and Artificial Lighting for Middle and Elementary School, focusing ondesk surface illuminance, writing board illuminance, illuminance uniformity, and glare controland other key indicators, comprehensively optimizing the original lighting conditions, with emphasis on improving the core lighting areas used in classroom instruction.
[Figure 2: Overall classroom environment after the eye-friendly lighting renovation]
Comparison of illuminance and key indicators before and after renovation
After the lighting renovation and on-site testing, the lighting conditions of the relevant classrooms at Heshan No. 1 Middle School improved significantly compared with before the renovation. The specific comparison is as follows:
| Indicator item | GB 7793 requirement | Before renovation | After renovation |
|---|---|---|---|
| Average illuminance on desk surface | ≥300 lx | 180–220 lx | 380–420 lx |
| Average illuminance on writing board | ≥500 lx | 300–350 lx | 650–720 lx |
| Illuminance uniformity on desk surface | ≥0.7 | 0.45–0.55 | 0.75–0.80 |
| Illuminance uniformity on writing board | ≥0.8 | 0.55–0.65 | 0.82–0.85 |
| Glare control | Should be effectively controlled | Local glare | Significantly improved |
| Visual comfort | —— | Prone to visual fatigue | Comfort significantly improved |
Test results show that,after renovation, the lighting indicators for classroom desk surfaces and writing boards all meet and comply with the requirements of GB 7793 national standard, and the classroom light environment quality has been significantly improved.
[Figure 3: On-site inspection of classroom lighting]
Strict inspection and acceptance to ensure real and reliable renovation results
After the lighting renovation is completed, relevant personnel use professional illuminance testing instruments to carry out multi-point measurements on students' desk surfaces and writing board areas, and check illuminance, uniformity and other indicators item by item against national standards, ensuring authentic data and reliable results, and providing a basis for subsequent use and management.
Continuously promote standardization construction to protect students' visual health
Improving the classroom lighting environment is an important foundation for implementing myopia prevention and control work. Next, the education department of Heshan City will continue to take national standards as the basis, steadily advance the improvement of classroom lighting conditions in primary and secondary schools, continuously enhance the quality of campus learning environments, and provide strong guarantees for the healthy growth of students.
