You didn't say exactly what you believe, but I think you are mistaken if you are claiming that the FAA requires _uncorrected_ 20:20 vision as a qualification.
"With FAA order 3930.3B ATC vision standards were made similar to airman standards. With or without correction air traffic controllers must demonstrate 20/20 distant vision in each eye separately, 20/40 in each eye at 16 inches near vision, and 20/40 in each eye at 32 inches intermediate vision if they are 50 years of age or older. Glasses or contact lenses are permitted."
"With FAA order 3930.3B ATC vision standards were made similar to airman standards. With or without correction air traffic controllers must demonstrate 20/20 distant vision in each eye separately, 20/40 in each eye at 16 inches near vision, and 20/40 in each eye at 32 inches intermediate vision if they are 50 years of age or older. Glasses or contact lenses are permitted."
https://aviationmedicine.com/article/vision-and-faa-standard...