Journal of glaucoma · 2023
Effects of COVID-19 on Retinal and Choroidal Thickness by Optical Coherence Tomography.
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Sumer Fatma, Subasi Sevgi
Аннотация
PRCIS: The aim of our study was to evaluate the subclinical changes in the macula, retinal nerve fiber layer (RNFL), and choroidal thickness after coronavirus disease 2019 (COVID-19) infection using spectral domain optical coherence tomography.
METHODS: Our study was prospectively designed and involved 170 eyes of 85 patients. Patients with polymerase chain reaction (PCR)-positive COVID-19 infection were examined in the ophthalmology clinic before and after infection were included. All included patients had mild COVID-19 with no hospitalization and no need for intubation. Control ophthalmic examination was repeated at least 6 months after PCR positivity. Macular and choroidal thickness and RNFL parameters were compared before and at least 6 months after PCR-positive COVID-19 infection using optical coherence tomography.
RESULTS: When the mean macular thickness data were evaluated, a significant decrease was detected in the inner (mean difference, -3.37 µm; 95% CI: -6.09 to -0.65, P = 0.021) and outer (mean difference, -6.56 µm; 95% CI: -9.26 to -3.86, P < 0.001) temporal segments and the inner (mean difference, -3.39 µm; 95% CI: -5.46 to -1.32, P = 0.002) and outer (mean difference, -2.01 µm; 95% CI, -3.70 to -0.31, P = 0.018) su p erior segments in the post-COVID-19 measurements compared with pre-COVID-19 measurements. Similarly, on RNFL evaluation, some thinning was evident in the temporal superior (mean = 1.14 µm, P = 0.004) and temporal inferior (mean = 1.30 µm, P = 0.032) regions. All choroidal regions, including central, nasal 500 µm and 1500 µm and temporal 500 µm and 1500 µm, exhibited significant thinning ( P < 0.001).
CONCLUSION: At least 6 months after mild COVID-19 infection, significant thinning was seen in the temporal and superior quadrants of the macula, the temporal superior and temporal inferior regions of the RNFL, and all measured areas of choroidal regions.
METHODS: Our study was prospectively designed and involved 170 eyes of 85 patients. Patients with polymerase chain reaction (PCR)-positive COVID-19 infection were examined in the ophthalmology clinic before and after infection were included. All included patients had mild COVID-19 with no hospitalization and no need for intubation. Control ophthalmic examination was repeated at least 6 months after PCR positivity. Macular and choroidal thickness and RNFL parameters were compared before and at least 6 months after PCR-positive COVID-19 infection using optical coherence tomography.
RESULTS: When the mean macular thickness data were evaluated, a significant decrease was detected in the inner (mean difference, -3.37 µm; 95% CI: -6.09 to -0.65, P = 0.021) and outer (mean difference, -6.56 µm; 95% CI: -9.26 to -3.86, P < 0.001) temporal segments and the inner (mean difference, -3.39 µm; 95% CI: -5.46 to -1.32, P = 0.002) and outer (mean difference, -2.01 µm; 95% CI, -3.70 to -0.31, P = 0.018) su p erior segments in the post-COVID-19 measurements compared with pre-COVID-19 measurements. Similarly, on RNFL evaluation, some thinning was evident in the temporal superior (mean = 1.14 µm, P = 0.004) and temporal inferior (mean = 1.30 µm, P = 0.032) regions. All choroidal regions, including central, nasal 500 µm and 1500 µm and temporal 500 µm and 1500 µm, exhibited significant thinning ( P < 0.001).
CONCLUSION: At least 6 months after mild COVID-19 infection, significant thinning was seen in the temporal and superior quadrants of the macula, the temporal superior and temporal inferior regions of the RNFL, and all measured areas of choroidal regions.