I've heard so many different things about eyesight. I've read on the NOMI site on one part that it can't be worse that 20/40 with -1.00 astigmatism, and I've also read on that site that you can have up to 20/400 and still fly helicopters over land, etc... etc... So what is it? I've got better than 20/40 or about that, uncorrected, but in my right eye, I think I have astigmatism of -2.50 but my right eye is near perfect, at -.75 and at like 20/30, 20/25 or somewhere around there. I mean, can I become a pilot, or no? And what about PRK?