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Updated: Sep 30, 2026
Multifocal Electroretinograms
Published on: December 4, 2011
Multifocal electroretinograms in the early stages of diabetic retinopathy
Minzhong Yu1, Xin Zhang, Xingwu Zhong
1Ophthalmological Laboratory, Ministry of Public Health, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.
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.
