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-
Chalky white optic disc with well defined margins along with normal retinal vessels and surrounding retina is typical of Primary Optic Atrophy.
Primary Optic Atrophy
Post-neuritic secondary optic atrophy
Glaucomatous optic atrophy
Consecutive optic atrophy