“Retinal Degeneration Associated With Taurine Deficiency in the Cat”, K. C. Hayes, Richard E. Carey, Susan Y. Schmidt1975-05-30 ()⁠:

A degeneration of the retinal photoreceptor cells develops in cats when casein is the source of dietary protein. Amino acid profiles indicate that the degeneration is associated with a selective decrease in plasma and retinal taurine concentrations.

A sulfur amino acid deficit in the casein diet combined with specific amino acid requirements of the cat appear related to this unique expression of taurine deficiency.