Aly, my little Collar[flower] has only had vision in one eye since she was born. She can run and play with the pack just fine. Sometimes when we are playing catch the other dogs will let her get the ball (when I throw it right at her) even though they could easily get it themselves. Her mom, CheekyBitch, has now gone almost totally deaf. That's bad for a border collie but she too has adapted quite well and is as happy as ever. They adapt better than we do sometimes. Stay strong.
L