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Multifocal electroretinograms in the early stages of diabetic retinopathy
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- Author:
- No author available
- Journal Title:
- CHINESE MEDICAL JOURNAL
- Issue:
- 4
- DOI:
- 10.3760/cma.j.issn.0366-6999.2002.04.120
- Key Word:
- 糖尿病视网膜病变;多焦视网膜电图;视野;离心度;diabetic retinopathy;multifocal electroretinogram;visual field;eccentricity
Abstract： 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.
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