> Multiple factors are involved in the development of myopia [18]. Both genetics and the environment play a role in the development and progression of myopia. Many epidemiological surveys have shown that excessive close-up work, a high level of education, and participation in fewer outdoor activities were important environmental risk factors for myopia [9,19–24]. Genetic factors have been proven to play a significant role in the development of myopia, and several genes are associated with high myopia [18,25–30].

-- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261017/

Thanks! I'm myopic, have higher ed degrees, and work as a luthier specializing in restoration work (excessive close up work for long hours). I knew it was partly genetic looking at family history but had no idea that my everyday work was compounding the problem.

Myopia has become massively more prevalent over the last century, so we know there are environmental factors that are significant contributors to risk of contraction.