RHO and retinal degeneration: Preliminary results indicate that PRCs of crbP13A9 homozygous flies accumulate more intracellular Rhodopsin-carrying vesicles when exposed to light, a typical sign of retinal degeneration in flies (Pocha et al., 2011), making this allele an ideal source to further unravel the molecular mechanisms by which Drosophila crb protects photoreceptor cells from the detrimental consequences of light-induced cell stress.