My first BP was pretty much hatched and raised in a plastic tub at her breeder's. When I bought her from him, she was almost a year old....I put her in a glass tank that I'd had all set up. Temps and humidity were spot on...plenty of hides and leaves to crawl around in.....should have been perfect. But...she wouldn't eat. As soon as I gave in and moved her into a plain ol' tub she started eating like there was no tomorrow.

Of course, this is just my experience with a single snake...take that for what it is. But I truly believe they don't need to "see the world around them" or even particularly want to. They are content knowing their little space in the world is safe and warm and somehow filled with plentiful prey items.