title: [Optic neuropathies of different etiology and normal tension glaucoma: the point of differential diagnosis].
abstract: 62 patients (109 eyes) with glaucoma-like optic nerve head cupping and normal IOP indices (Po not more than 21 mm Hg) were examined to find the etiology of optic nerve changes. Regarding corneal biomechanics new-onset primary open-angle glaucoma (POAG) and normal tension glaucoma (NTG) were diagnosed in 27% and 3% of examined patients respectively. In 59% of patients optic neuropathy (ON) of different etiology was found to be the cause of glaucoma-like optic nerve changes including compression ON due to lesion of intracranial portion of optic nerve and chiasma in 6% of cases. In 11% physiologic large optic nerve head cupping with normal visual functions and absence of nerve fiber structural changes was found.
authors.forename: N L
authors.initials: NL
authors.lastname: Sheremet
authors.forename: I V
authors.initials: IV
authors.lastname: Kozlova
authors.forename: A I
authors.initials: AI
authors.lastname: Akopian
authors.forename: A A
authors.initials: AA
authors.lastname: Antonov
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D057066:Low Tension Glaucoma / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D009901:Optic Nerve Diseases / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology