Local Relationship between Global-Flash Multifocal Electroretinogram Optic Nerve Head Components and Visual Field Defects in Patients with Glaucoma

Figure 4

Induced component waveforms in normal controls and patients with glaucoma. IC of normal controls (a) shows intact second positive deflection waveform and nasotemporal asymmetry. IC of patients with glaucoma (b) shows reduced second positive deflection in some waveforms (red line) and disrupted nasotemporal asymmetry. Dot line indicates optic nerve head components.