Fundoscopy of a patient shows chalky white optic disc with well defined margins. Retinal vessels and surrounding retina appears normal. Which of the following is the most likely diagnosis:: (A) Primary Optic Atrophy, (B) Post-neuritic secondary optic atrophy, (C) Glaucomatous optic atrophy, (D) Consecutive optic atrophy
Answer is A. A i.e. Primary Optic Atrophy