Other notable myopia associations include RPGR (~80% of XLRP, −2.6–−9D), OAT (gyrate atrophy, −9D), RP1 (~1% of ARRP, −5.5D; 5–7% of ADRP, ~−1D) and IMPG2 (~−4D) [51,52,53]. The gene discussed is IMPG2; the disease is myopia.