Journal
SENSORS
Volume 20, Issue 19, Pages -Publisher
MDPI
DOI: 10.3390/s20195542
Keywords
visual acuity; visual evoked potential (VEP); stimulus paradigm; threshold determination
Funding
- Special Guidance Funds for the Construction of World-class Universities
- Characteristic Development in Central Universities [PY3A071]
- National Natural Science Foundation of China [NSFC-51775415]
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Visual evoked potential (VEP) has been used as an alternative method to assess visual acuity objectively, especially in non-verbal infants and adults with low intellectual abilities or malingering. By sweeping the spatial frequency of visual stimuli and recording the corresponding VEP, VEP acuity can be defined by analyzing electroencephalography (EEG) signals. This paper presents a review on the VEP-based visual acuity assessment technique, including a brief overview of the technique, the effects of the parameters of visual stimuli, and signal acquisition and analysis of the VEP acuity test, and a summary of the current clinical applications of the technique. Finally, we discuss the current problems in this research domain and potential future work, which may enable this technique to be used more widely and quickly, deepening the VEP and even electrophysiology research on the detection and diagnosis of visual function.
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