I can't see a reason to be concerned! I had a Greyhound who we adotpted at age 9, who suffered an eye injury, rendering him blind in one eye. Never slowed him down, and the only issue it created was an opportunity to "use" it to gain attention from strangers!

We never had any problems with it, health-wise, either. I doubt you'll have any problems, and as was already said, the pup does not know the difference!