the dm : dd ratio was calculated for six eyes of five children with ophthalmoscopically obvious optic nerve hypoplasia , 12 eyes of six children in whom the diagnosis of optic nerve hypoplasia was equivocal ( but established by visual field examination and retinal red free photography ) , 13 eyes of eight children with optic atrophy , and 25 eyes of 17 children with normal optic discs .
C0029124
optic atrophy
C0015392
eyes