Electroretinography: A biopotential to assess the function/dysfunction of the retina

20th Argentinean Bioengineering Society Congress

物理学;生物科学

Quintana, Quinteros^1,2,3 ; Benedetto, M.L.^2 ; Maldonado, M.M.^1,4 ; Vera De Payer, A.C.E.^1 ; Contin, M.A.^2

Facultad de Ciencias Exactas, Fisicas y Naturales, UNC, Argentina^1

CIQUIBIC-CONICET, Facultad de Ciencias Quimicas, UNC, Argentina^2

Becaria Doctoral Secyt, UNC, Argentina^3

CIEM-CONICET, Argentina^4

关键词: Clinical information;    Degenerative disease;    Diagnostic tools;    Electro-encephalogram (EEG);    Electroretinography;    Functional integrities;    High incidence;    Noninvasive technique;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/705/1/012053/pdf
DOI  :  10.1088/1742-6596/705/1/012053

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

The Electroretinography (ERG) is a noninvasive technique that allows the assessment of functional integrity of the retina. The ERG recordings are biopotencials acquired in the corneal surface as a response of retinal tissue against controlled light stimuli. In clinical ophthalmology ERG is not commonly used but nowadays, because of the high incidence of degenerative diseases of the retina (RD), its use should be increased. Like other biopotentials as electrocardiography (ECG), electroencephalogram (EEG) and electromyography (EMG), ERG is a low amplitude signal, in this case a few hundred of microvolts (μV), which must be fitted and processed. The ERG signals are affected in morphology in the presence of pathologies that affects the integrity of the different retinal cell groups, for example due to some RD. In advanced cases of RD recordings can be abolished in the time domain; and yet in them it is believed that there is relevant clinical information making the ERG a great potential diagnostic tool.