A large-scale study of U.S. patients showed that the incidence of myopia increases with education. When researchers isolated patients 18 to 24 with less than five years of schooling, they found that only 3.1 percent had myopia. In comparison, 30 percent of patients in the same age group with more than 12 years of education had myopia.6 Of the adult population which did not attend college or military academies, 10 percent developed myopia. Twenty to 40 percent of those who had higher education develop nearsightedness.7
A study of Eskimo volunteers from Barrow, Alaska8 showed that the prevalence of myopia was 8.4 percent among parents and 58 percent among children. This study also showed that no Eskimos over the age of 51 were myopic. Researchers observed that prior to 1947, this community only offered the first six grades of education. After 1947, children were required to attend through eighth and ninth grades. Myopia in the group without compulsory education was 1.5 percent. Of those with compulsory education, 40.3 percent had myopia.