I'm fairly blind, near-sighted, and my eye glasses require a 5.75 correction. I have minor issues with getting my eye close enough to the viewfinder, so I sometimes lose some of the outer edges of the scene. This usually isn't a problem for landscapes, when I have time to adjust, but under action of BIF it is sometimes a bummer. ("Damn, I thought that bird filled the frame, but it's only at 75%!")
One of my bigger problems is with long-distance resolution. I've been out shooting with CDS, who has good if not great vision - and I often can't see a bird that he sees clearly. He was said something about a bird being male, and I cracked the (stolen) joke: "I can't even see the bird, and you can see it's freaking genitals!"
In reality, this isn't so much of a problem - if I had a 20,000mm lens it would be, but by the time they're anywhere close to me I can see them just fine.
My biggest complaint with eye glasses is the loss of peripheral vision. Because eyeglasses don't wrap around my head, the edges (actually a good amount) of my peripheral vision is so blurred that it's effectively useless. My peripheral vision only detects distinct movements or changes in color/lighting.
That sucks big time.
But that also shouldn't be a problem for you - your eyesight won't be anywhere near as bad as mine. So you might get a slight loss of peripheral vision/acuity - maybe 5%?
All of my problems could be avoided by wearing contact lenses, but I can't wear them - even specialized ones - for longer than 5-6 hours because of dry eyes.
In the end, I highly doubt that you'd have any of my problems.