Qualification for potential flying duties requires uncorrected distant visual acuity no worse than 20/50 (pilot) and 20/200 (combat systems officer), correctable to 20/20 in each eye. Uncorrected near visual acuity worse than 20/20 (pilot) and 20/40 (combat systems officer) must be correctable to 20/20 in each eye.
The refractive error limits to qualify for potential flying duties are +2.00/-1.00 in any meridian and 0.75 astigmatism (pilot) and +3.00/-2.25 in any meridian and 2.00 astigmatism (combat systems officer).
That's copied and pasted from the 2013-2014 USAFA online catalog. Maybe that will help some. I'm no expert (heck I'm just a 2021 appointee), but I don't think it would be waiverable if it's outside of their vision standards for being a pilot. I could be wrong, but I don't think Uncle Sam would want someone flying multi-million dollar aircraft with vision poor enough that it had to be waived.