advertisement
Abstract #8337 Published in IGR 4-3
Modifications of visual evoked potentials in patients with glaucoma
Snegir MANeurophysiology 2002; 34: 52-57
The authors compared the visual evoked EEG potentials (VEP) elicited by presentation of a reversal chess pattern in patients with glaucoma and in a control group. Amplitudes, peak latencies of the main VEP components (N75, P100, and N145), interpeak intervals, and interpeak magnitudes were measured, and a spectral analysis of the averaged VEP was performed. In patients suffering from glaucoma, the latencies of the N75 and P100 components were greater, while the interpeak intervals P100-N145 and N75-N145 were shorter, than those in the control group. Glaucoma-related changes in the VEP spectral characteristics, in particular a drop in the spectral power of oscillations corresponding to the alpha rhythm, were observed.
M.A. Snegir, MD, Donetsk State Medical University, Ministry of Public Health of Ukraine, Donetsk, Ukraine. andrew@medic.donetsk.ua
Classification:
6.7 Electro-ophthalmodiagnosis (Part of: 6 Clinical examination methods)
