In particular, in the rd10 model of RP, CX3CR1 deficiency has also been associated with increased photoreceptor degeneration (Peng et al., 2014), but how this alteration results in changes in microglia‐photoreceptor interactions responsible for altered photoreceptor degeneration is not clear. The gene discussed is CX3CR1; the disease is retinitis pigmentosa 1.