The Claim
In myopic children aged 5–18 years, contraction of the ciliary muscle is associated with a transient increase in axial length of 0.028 ± 0.007 mm, as measured by optical biometry before and after pharmacological pupil dilation.
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 children with myopia between ages 5 and 18, tightening of the ciliary muscle is linked to a small, temporary increase in the length of the eye by 0.028 millimeters, measured using optical biometry before and after pupil-dilating eye drops.
See the scientific wording
In myopic children aged 5–18 years, contraction of the ciliary muscle is associated with a transient increase in axial length of 0.028 ± 0.007 mm, as measured by optical biometry before and after pharmacological pupil dilation, suggesting a biomechanical link between accommodation and eye shape changes in myopia.
When the eye focuses on something close, the muscle behind the iris tightens and pulls on the back of the eyeball, stretching it slightly longer for a short time. When the muscle relaxes, the eye returns to its normal length.
What the research says
1 studyStudy: Global Prevalence of Myopia and High Myopia and Temporal Trends from 2000 through 2050
When kids with nearsightedness focus on something close, their eye muscle squeezes and makes their eyeball a tiny bit longer — about the width of a fraction of a human hair. When eye drops relax the muscle, the eye goes back to its normal length. The study saw this happen in most kids.
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.