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.
Ophthalmological Laboratory, Ministry of Public Health, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.
Minzhong
M
Yu
Xin
X
Zhang
Xingwu
X
Zhong
Qiang
Q
Yu
Futian
F
Jiang
Juanmei
J
Ma
Dezheng
D
Wu
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