CAT and retinal degeneration: To test if the overexpression of Catalase in the Rh1-GFPKASH 3–1 flies correlated with protection from blue light-induced retinal degeneration, we assessed blue light-induced retinal degeneration in the Rh1-GFPKASH 3–2 flies that did not overexpress Catalase and in w1118 flies using an identical approach to that used for the 3–1 line.