DRAM2 and Abnormal retinal morphology: Moreover, since we first compiled the list of RDG (January 2015), 10 new genes have been found to cause retinal diseases according to the RetNet database (ATF6, DRAM2, HGSNAT, IFT172, LAMA1, NEUROD1, POC1B, PRPS1, SPP2, KIZ).