Our Wylie is blind in both eyes now, and has been for some time. But like your baby, he plays like a puppy and has a very young spirit. He gets around amazingly well too! Also, he does still play fetch even though he can't see the ball -- we just have to play fetch on the ceramic tile floor so that he can hear the ball vs seeing it. It's pretty amazing.
Your little one will adjust along w/ his sight, believe me. I know it's tough, bc I feel it too...but it will be okay
.