Well, thanks all, quite an interesting thread.
I'm not gonna go into all the stuff I've done on motorcycles, in cars'n'trucks, planes. etc. I don't even want to go into details regarding an Olympic sport I did rather well in, that's considered to be somewhat eyesight-dependent.
I feel I compensate OK.
I don't wear cokebottle glasses, I can't stand glasses and just wear a corrective contact lens in my correctable eye.
I figure intubating people is a bit harder than dogs because .... see a dog's got a nice long upper and lower jaw, you can hold the mouth open easy lol. But it's looking for the cords, etc. I dunno that's medic stuff I'm working on EMT first. As for an IV puncture, that's not highly eyesight-dependent, a lot of it is feel and good manual dexterity. I seem to be OK in this area.
Thanks for all the input folks, I think I'm just gonna go ahead and see how far I can get and stop worrying about it so much.