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Purpose <p>This study utilizes a full spectrum light source resembling the visible spectrum of sunlight (430–780&#xa0;nm) to modify classroom and household lighting, investigating its effectiveness in preventing and controlling myopia in school-aged children.</p> Methods <p>This prospective cohort study was conducted from December 1, 2024, to February 28, 2025. Participants included fourth-grade students from Qingjianhu Primary School in Suzhou, Jiangsu Province. The intervention group (<i>n</i> = 45) received lighting modifications using simulated full spectrum lighting, while the control group (<i>n</i> = 40) maintained their original lighting environment. Baseline demographic characteristics and 12 ophthalmic parameters were recorded. Changes in spherical equivalent refraction (SER), axial length (AL), and subfoveal choroidal thickness (SFCT) were monitored at 6 and 12 months post-intervention. Non-parametric tests were used for intergroup comparisons.</p> Results <p>The analysis revealed no statistically significant differences in baseline characteristics between the two groups (all <i>P</i> &gt; 0.05). At both 6 and 12 months, the intervention group exhibited significantly greater changes in SER (<i>P</i>₆mo = 0.025; <i>P</i>₁₂mo &lt; 0.001), AL (<i>P</i>₆mo = 0.032; <i>P</i>₁₂mo &lt; 0.001), and SFCT (<i>P</i>₆mo &lt; 0.001; <i>P</i>₁₂mo &lt; 0.001) compared to the control group. Changes in these parameters at both timepoints correlated with baseline SER, LT, AL/CR, and SFCT.</p> Conclusion <p>Full spectrum lighting (430–780&#xa0;nm) effectively slows myopia progression in school-aged children. Early exposure significantly increases SFCT, while prolonged use reduces AL elongation and SER progression. Implementation of such lighting interventions in schools and households may provide an effective strategy for myopia prevention and control.</p>

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Effect of full spectrum indoor lighting on myopia progression in school-aged children: a prospective cohort study

  • 期刊论文

  • 发表日期：

    2026年3月12日

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  • Jia-Yan Bao,
  • Yu-Tong Zhang,
  • Ling-ying Ge,
  • An-Min Liu,
  • Jing-Yan Yao

摘要

Purpose

This study utilizes a full spectrum light source resembling the visible spectrum of sunlight (430–780 nm) to modify classroom and household lighting, investigating its effectiveness in preventing and controlling myopia in school-aged children.

Methods

This prospective cohort study was conducted from December 1, 2024, to February 28, 2025. Participants included fourth-grade students from Qingjianhu Primary School in Suzhou, Jiangsu Province. The intervention group (n = 45) received lighting modifications using simulated full spectrum lighting, while the control group (n = 40) maintained their original lighting environment. Baseline demographic characteristics and 12 ophthalmic parameters were recorded. Changes in spherical equivalent refraction (SER), axial length (AL), and subfoveal choroidal thickness (SFCT) were monitored at 6 and 12 months post-intervention. Non-parametric tests were used for intergroup comparisons.

Results

The analysis revealed no statistically significant differences in baseline characteristics between the two groups (all P > 0.05). At both 6 and 12 months, the intervention group exhibited significantly greater changes in SER (P₆mo = 0.025; P₁₂mo < 0.001), AL (P₆mo = 0.032; P₁₂mo < 0.001), and SFCT (P₆mo < 0.001; P₁₂mo < 0.001) compared to the control group. Changes in these parameters at both timepoints correlated with baseline SER, LT, AL/CR, and SFCT.

Conclusion

Full spectrum lighting (430–780 nm) effectively slows myopia progression in school-aged children. Early exposure significantly increases SFCT, while prolonged use reduces AL elongation and SER progression. Implementation of such lighting interventions in schools and households may provide an effective strategy for myopia prevention and control.