The Impact of COVID-19 Infection on Macular Capillary Perfusion
Mine Esen Baris1, Cumali Degirmenci1, Suzan Guven Yilmaz1
1Department of Ophthalmology, Ege University Faculty of Medicine, Izmir, Türkiye.
Objectives:
Thromboembolic complications related to the COVID-19 infection are frequently reported. This study aims to evaluate the impact of a prior non-severe COVID-19 infection on retinal microcirculation with optical coherence tomography angiography (OCTA).
Methods:
A total of 83 eyes of 43 patients with a history of non-severe COVID-19 infection confirmed with a positive PCR test (Group 1) and 30 healthy controls (Group 2) underwent detailed eye examination, including optic coherence tomography angiography (OCTA, RTVue-XR Avanti) scanning. Vessel densities (VD) in the superficial capillary plexus (SCP), deep capillary plexus (DCP), and foveal avascular zone were evaluated.
Results:
The mean duration between the COVID-19 positive PCR test and ocular examination was 144.6±82.2 days. VD of SCP and DCP in the foveal and perifoveal regions were significantly lower in Group 1 compared to Group 2 (p<0.05).
Conclusion:
A non-severe COVID-19 infection may cause a decrease in the VD of retinal SCP and DCP.
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