Welcome to the forum,
Do you have a puppy born blind? I found these awhile back for a member that might help you. Also have you had the puppy to an opthomalogist? They can really give you some great information. http://www.blinddogs.com/
opthomalogist vets http://www.vmdb.org/clinic.html
A member here Ardeagold might be able to help you. She has a golden that was born blind and can give you some information. and there is information in the following thread.