Prescription sunglasses
I also require glasses for distance vision (Left -4.25/Right -3.50) and as my Class 1 requires a second pair to be carried with me when I fly I went for a pair of sunglasses. I went for a Rayban G15 tint on a cheaper pair of frames, all up about $250NZD. Kee-p away from polarised lenses and amber tinted lenses and you'll be right!
Dan