“…Carroll (1) and Gillette (2) observed that many patients with visual symptoms from digitalis had no change in their visual acuity, fields or ocular fundi. On the other hand, Wagener, Smith and Nickeson (3) reported a case of retrobulbar optic neuritis and complete heart block following digitalis therapy. Sykowski (4) also reported patients with retrobulbar neuritis which occurred after the administration of digitoxin.…”