Do pilots have to have 20/20 vision?
No. For any class of medical your vision can be less than 20/20 as long as it is correctable to 20/20 with glasses or contacts. Check with a FAA medical doctor to determine your eligibility. While airlines and the military prefer 20/20 vision or better, some airlines hire pilots with up to 20/100, correctable to 20/20. Other aviation jobs allow for poorer vision, corrected to 20/20.