i dont think theyre blind, in the 2nd to last pic i can see that the ends of the eye stalks are darker.

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Owned by 3 human children, Kyle, Ebony and Harvey Bob the Chinese Hamster, Jamie the African Pygmy Hedgehog, Bugsy and Nelson the Guinea Pigs, and Stewie, Dora, Jessie and Billy the Bunnies RIP Mr Chip Sleep tight little angel