Multifocal electroretinograms in the early stages of diabetic retinopathy
Yu, M.; Zhang, X.; Zhong, X.; Yu, Q.; Jiang, F.; Ma, J.; Wu, D.
Chinese Medical Journal 115(4): 563-566
2002
ISSN/ISBN: 0366-6999 PMID: 12133299 Document Number: 545555
Objective: To investigate the characteristics of multifocal electroretinograms (mf-ERG) of different phases in diabetic retinopathy (DR) and its clinical significance. Methods: Multifocal electroretinograms in patients with DR (I-II stage) were tested with VERIS IV system. Results: In I-II stage, the absolute values of N1, P1 and N2 response densities, and the N1-P1 and P1-N2 response densities were attenuated is a field of about 45 degrees in diameter. Conclusion: As a new objective and quantitative examination for spatial visual function, multifocal electroretinograms may be valuable in the diagnosis of diabetic retinopathy.