Show pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. {{tag>ddx ERG}} ====== Electronegative ERG ====== ==== Possible Causes ==== * CSNB (Oguchi’s) * CRVO / acute CRAO * Juvenile X-linked retinoschisis * Siderosis * Myotonic dystrophy * Duschenne muscular dystrophy * Batten’s disease * Quinine toxicity / methanol toxicity * MAR (melanoma-associated retinopathy / CAR (cancer-associated retinopathy) * Retinoschisis ddx erg