Laura,
First of all I want to say I'm sorry, that is really sad that your son has that disease. I think you are doing the right thing by letting him see as many things as possible before he loses his sight completely. It will give him a lot of memories to look back on. Hopefully he'll remember them well. Of course Creed will be a great site for him. (And a great sound
). My deepest sympathies go to you and your family. All I can say is, and i'm sure this won't be a problem because he is your son and you love him, but don't think any less of his abilities as a person because of this disease. It will just be an obstacle in his life that he will have to over come to be able to enjoy life to its fullest. Good luck in the future with you and your family.