A young man with blurring of vision in right eye, followed by left eye after 3 months, Showing disc hyperemia, edema, circumpapillary telangiectasia with normal pupillary response with centrocecal scotoma on perimetery, the cause is
Optic atrophy
Optic neuritis
Toxic optic neuropathy
Leber's optic neuropathy
Disc hyperemia, periperillary telangiectasia clearly s/o leber's optic neuropathy.