The Claim
In adolescents aged 8–16, lower ambient lighting levels are associated with more negative spherical equivalent refraction.
What the research says
Not yet evaluated
We are still looking at what the research says.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Children and teenagers who spend time in dimmer lighting have more severe nearsightedness, as measured by refractive error.
See the scientific wording
In adolescents aged 8–16, lower ambient lighting levels were associated with more negative spherical equivalent refraction, suggesting a potential link between dim environments and increased myopia severity.
In dim light, the pupil opens wider, letting in more blurred and distorted light that confuses the retina. At the same time, focusing on close objects for long periods forces the eye to strain its focusing system more than its turning system. These two problems together send signals to the back of the eye to grow longer, which causes distant objects to appear blurry.
What the research says
1 studyStudy: Multi-Interactive-Modality Based Modeling for Myopia Pro-Gression of Adolescent Student
Teens who read or use screens in dim light tend to have worse eyesight, and this study found that dim lighting, along with reading too close and for too long, is linked to stronger nearsightedness.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.