Myopes have significantly higher serum melatonin concentrations than non-myopes.
Stephanie KearneyLisa O'DonoghueL Kirsty PourshahidiDiego CobiceKathryn J SaundersPublished in: Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) (2017)
This study reports for the first time in humans that myopes exhibit higher serum Mel concentrations than non-myopes. This may indicate a role for light exposure and circadian rhythm in the human myopic growth mechanism. Further research should focus on younger cohorts exhibiting more dynamic myopic progression and explore the profile of these neurochemicals alongside evaluation of sleep patterns in myopic and non-myopic groups.