Another interesting part:] >In Venezuela, where the state oil company sold only leaded gasoline until 1999, a recent report found 63 percent of newborn children with blood-lead levels in excess of the so-called safe levels promulgated by the US government.
And as of 2008, there were virtually no nearsighted people in Venezuela.
https://iovs.arvojournals.org/article.aspx?articleid=2124447
https://www.bijojournal.org/article.asp?issn=1858-6538;year=... (recalculate percentages)
"Conclusion: Lead poison has a great effect on vision and eye health of the workers, its lead to decrease of vision result in development amblyopia, it also has influence on ocular media and causes severe allergic reaction Thus, all the workers in this field should wear the protection tools provided in the factory, and there is a critical need for examining their ocular health annually."
11 out of the 76 short term exposed workers had myopia, while 10 out of 124 long term exposed workers had myopia, which is much less.