While myopia was not associated with the month of birth, there was a trend towards a higher prevalence of myopia among conscripts living above the Arctic Circle

While myopia was not associated with the month of birth, there was a trend towards a higher prevalence of myopia among conscripts living above the Arctic Circle, consistent with the hypothesis that ambient lighting might influence refractive development. https://www.med.upenn.edu/cpob/documents/Myopiaandnaturallighting.pdf https://www.med.upenn.edu/cpob/documents/Myopiaandnaturallig...