What is the diagnosis of the following examination of the fundus?: (A) Diabetes retinopathy, (B) Optic atrophy, (C) Acute glaucoma, (D) Optic disc drusen
Answer is C. Glaucoma results in "cupping" as the neural rim is destroyed and the central cup becomes enlarged and excavated. The cup-to-disc ratio is about 0.7/1.0 in this patient.