The correlation of visual evoked potentials (VEP) and visual field indices (Octopus G1) in glaucoma and ocular...

Flash evoked responses and the visual field indices (VFI) of the Octopus G1 program were recorded from 42 eyes of 21 patients, aged 23-76 years (mean 51 years); 29 eyes had open-angle glaucoma (OAG) and 10 ocular hypertension (OH). Three eyes were normal. The early component of the VEP called P 120 had lower amplitude in glaucomatous eyes compared with normal or hypertensive eyes. Mean sensitivity (MS), mean defect (MD), and short time fluctuation (SF), indicative of diffuse non-specific nerve fiber los, correlated significantly (P less than 0.05). Reliability factor (RF), which is indicative of psychodynamic factors, also correlated significantly (P less than 0.05) in eyes with OAG.