Lots of data out there. Myopia is pretty rare in hunter-gatherer populations, but rates ncrease rapidly as the same population modernizes. Example: https://www.

Lots of data out there. Myopia is pretty rare in hunter-gatherer populations, but rates ncrease rapidly as the same population modernizes. Example: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1956268/?page=1 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1956268/?page=1