Saeed Karimi1,2, Amir Arabi3,4, Toktam Shahraki1,2, Sare Safi5. 1. Ophthalmic Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2. Department of Ophthalmology, Torfeh Medical Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 3. Ophthalmic Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran. amir_arab_91@yahoo.com. 4. Department of Ophthalmology, Torfeh Medical Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran. amir_arab_91@yahoo.com. 5. Ophthalmic Epidemiology Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract
OBJECTIVES: Since there are few reports on the ocular involvement of coronavirus disease 2019 (COVID-19) patients, this study aimed to assess the presence of severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2) in the tears of patients with COVID-19. METHODS: In this prospective case series, nasopharyngeal and tear sampling of 43 patients with severe COVID-19 were performed. The quantitative reverse transcription polymerase chain reaction (RT-PCR) was conducted to detect SARS-CoV-2. Ocular and systemic signs and symptoms were recorded from their medical history. RESULTS: The mean age of patients was 56 ± 13 years. The average disease time from initiation of symptoms was 3.27 days, range: 1-7 days. Forty-one patients (95.3%) had fever at the time of sampling. Only one patient had conjunctivitis. Thirty (69.8%) nasopharyngeal and three (7%) tear samples were positive for SARS-CoV-2. The result of tear sample was positive in the patient with conjunctivitis. All patients with positive tear RT-PCR results had positive nasopharyngeal RT-PCR results. CONCLUSIONS: Ocular manifestation was rare in this series of severe COVID-19 patients, however, 7% of the patients had viral RNA in their conjunctival secretions. Therefore, possibility of ocular transmission should be considered even in the absence of ocular manifestations.
OBJECTIVES: Since there are few reports on the ocular involvement of coronavirus disease 2019 (COVID-19) patients, this study aimed to assess the presence of severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2) in the tears of patients with COVID-19. METHODS: In this prospective case series, nasopharyngeal and tear sampling of 43 patients with severe COVID-19 were performed. The quantitative reverse transcription polymerase chain reaction (RT-PCR) was conducted to detect SARS-CoV-2. Ocular and systemic signs and symptoms were recorded from their medical history. RESULTS: The mean age of patients was 56 ± 13 years. The average disease time from initiation of symptoms was 3.27 days, range: 1-7 days. Forty-one patients (95.3%) had fever at the time of sampling. Only one patient had conjunctivitis. Thirty (69.8%) nasopharyngeal and three (7%) tear samples were positive for SARS-CoV-2. The result of tear sample was positive in the patient with conjunctivitis. All patients with positive tear RT-PCR results had positive nasopharyngeal RT-PCR results. CONCLUSIONS: Ocular manifestation was rare in this series of severe COVID-19 patients, however, 7% of the patients had viral RNA in their conjunctival secretions. Therefore, possibility of ocular transmission should be considered even in the absence of ocular manifestations.
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