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Updated: May 23, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
[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.
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