Chow et al.’s study used the DGRP genomic sequence data to identify correlations between genetic and phenotypic variation in Drosophila eye size for Ryoo et al.’s model of RP, in which a mutated version of rhodopsin is overexpressed in the eye, leading to the accumulation of misfolded proteins and ultimately cell death [7]. This evidence concerns the gene RHO and retinitis pigmentosa 1.