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Thanks to the authors for an excellent post! This is clearly an important problem. I wonder if it would be possible to estimate cost-effectiveness ($ per DALY averted) of some existing programs to norm this against global health and development causes currently favored by the EA community, such as GiveWell’s top charities?
What is the source for the claim that “Currently, the US has banned over-the-counter myopia glasses”? Glasses for mild myopia (up to about −4.0) are available without a prescription on Amazon (https://a.co/d/04RQUEk8 is the kind I wear when I take my contacts out), and AFAICT that is perfectly legal. AFAIK prescription lenses are only required for correcting more complex or multiple refractory problems like myopia+astigmatism, or myopia+presbyopia.
It seems like a highly neglected intervention to simply provide free myopia glasses in developing countries without expensive screening. If people put on a pair of them and it improves their vision, it shouldn’t require a professional to tell them to pick the weakest pair that seems to work and take them home to try.