Retinal Vessel Diameter Changes in COVID-19 Infected Patients

Area of Science:

• Ophthalmology
• Cardiovascular Research
• Infectious Diseases

Background:

• Coronavirus disease 2019 (COVID-19) is known to affect multiple organ systems.
• Vascular complications are a significant concern in COVID-19 patients.
• Retinal microvasculature may reflect systemic vascular changes.

Purpose of the Study:

• To investigate longitudinal changes in retinal vessel diameters in COVID-19 patients.
• To compare retinal vessel dimensions between COVID-19 patients and healthy controls.
• To assess the potential of retinal vessel diameter measurement as a biomarker for vascular risk in COVID-19.

Main Methods:

• A cohort study involving 25 COVID-19 patients and 25 healthy controls.
• Measurement of peripapillary temporal and nasal retinal artery and vein diameters.
• Serial measurements at baseline and 4 months post-remission.

Main Results:

• COVID-19 patients exhibited significantly increased retinal artery and vein diameters at baseline compared to controls.
• All measured retinal vessel diameters showed a significant decrease 4 months after remission.
• These findings indicate transient vascular alterations in the retina during acute COVID-19.

Conclusions:

• COVID-19 is associated with temporary increases in retinal vessel diameters.
• Retinal vessel diameter measurement offers a potential noninvasive approach to evaluate vascular status in COVID-19.
• Further research is warranted to confirm the utility of retinal imaging in predicting COVID-19-related vascular complications.