Multifocal electroretinograms in the early stages of diabetic retinopathy.
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.


CONCLUSIONS
As a new objective and quantitative examination for spatial visual function, multifocal electroretinograms may be valuable in the diagnosis of diabetic retinopathy.
Yu
Minzhong
M
Ophthalmological Laboratory, Ministry of Public Health, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.
Zhang
Xin
X
Zhong
Xingwu
X
Yu
Qiang
Q
Jiang
Futian
F
Ma
Juanmei
J
Wu
Dezheng
D
D000368:Aged; D003930:Diabetic Retinopathy / Q000473:pathology / Q000503:physiopathology*; D004596:Electroretinography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012160:Retina / Q000473:pathology / Q000503:physiopathology; D013997:Time Factors