The Claim
In a cohort of 1,256 children, higher combined oxidative stress exposure was associated with a 0.070–0.074 diopter reduction in spherical equivalent, but this association was not statistically significant after correction for multiple comparisons.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In a group of 1,256 children, higher levels of oxidative stress were linked to a very small decrease in eye focusing power, but this link was not strong enough to rule out chance after accounting for multiple tests.
See the scientific wording
In a cohort of 1,256 children, higher combined oxidative stress exposure was associated with a 0.070–0.074 diopter reduction in spherical equivalent, but this association was not statistically significant after correction for multiple comparisons.
Higher levels of oxidative stress in the eye cause changes in the connective tissue around the back of the eye, making it stiffer and less able to stretch as the eye grows, which results in a slightly shorter eye shape and less nearsightedness.
What the research says
1 studyThe study found that kids whose moms had higher levels of certain stress markers in the placenta tended to be slightly less nearsighted, just like the claim said — but the link was so weak that scientists couldn’t be sure it wasn’t just luck.
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.