eGFR was negatively correlated to RNP in both the 30° and 60° FOV regions (R = −0.69, p=0.004, and R = −0.46, p=0.057, respectively), and correlations were stronger among a subset of 7 participants with evidence of diabetic retinopathy on exam and fundus photos. This evidence concerns the gene RNPC3 and diabetic retinopathy.