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Visual evoked potential abnormalities in patients with COVID-19
1Adana City Training and Research Hospital, Department of Neurology - Adana, Turkey.
Revista Da Associacao Medica Brasileira (1992)
|March 7, 2024
Summary
Coronavirus disease 2019 (COVID-19) patients may experience visual evoked potential abnormalities. This study found differences in P2 latency and wave abnormalities in COVID-19 survivors, suggesting potential long-term visual pathway impacts.
Area of Science:
- Neuroscience
- Ophthalmology
- Infectious Diseases
Background:
- Coronavirus disease 2019 (COVID-19) is linked to potential neurological complications.
- Optic neuritis, a condition causing visual evoked potential abnormalities, has been associated with COVID-19.
Purpose of the Study:
- To investigate visual evoked potential (VEP) abnormalities in patients who have recovered from COVID-19.
- To compare VEP findings between COVID-19 survivors and a control group.
Main Methods:
- A prospective case-control study involving 44 COVID-19 patients and 40 controls.
- Utilized pattern reversal visual evoked potential (PRVEP) and flash visual evoked potential (FVEP).
- Analyzed specific wave parameters (N75, P100, N135 for PRVEP; P1, N1, P2, N2, P3, N3 for FVEP).
Main Results:
- No significant differences in PRVEP parameters between COVID-19 patients and controls.
- A statistically significant difference in right P2 latency was observed (p=0.031).
- Abnormalities were found in P100 (13.6%) and P2 waves (29.6%) in COVID-19 patients.
Conclusions:
- The study suggests that visual evoked potential abnormalities may be present in individuals who have had COVID-19.
- These findings indicate potential subclinical visual pathway involvement following COVID-19 infection.
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