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KMID : 0360220210620040524
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Journal of the Korean Ophthalmological Society
2021 Volume.62 No. 4 p.524 ~ p.530
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Clinical Efficacy of Portable Electroretinograms
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Kim Min-Jin
Choi Kyung-Seek
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Abstract
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Purpose: To compare electroretinogram (ERG) waveforms acquired using a portable flash/flicker ERG with skin electrodes(RETevalTM; LKC Technologies, Gaithersburg, MD, USA), a portable flash/flicker ERG with ERG-jet contact lens electrodes(Fabrinal SA, La Chaux-De-Fonds, Swiss), and a conventional full-field (Ganzfeld) ERG.
Methods: The left eyes of 30 volunteers with no general or ocular history were measured with a portable RETeval ERG, a portableERG-jet system, and a conventional full-field ERG. Amplitudes and implicit times were compared among the measurementsobtained using the three systems.
Results: The RETeval ERG generally showed a lower amplitude than that obtained using a conventional full-field ERG (all,p < 0.001). Amplitude readings from the ERG-jet showed no differences with those acquired using the conventional full-fieldERG (all p > 0.1).
Conclusions: Given the differences in the readings from those obtained using a conventional full-field ERG, data from the portableERG-RETeval type should be analyzed with caution. Notably, the portable ERG-jet showed no differences in its readingscompared to those obtained using a conventional full-field ERG.
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KEYWORD
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Electrode, Electroretinogram, Portable electroretinogram, RETeval
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