ABSTRACT
Immunomodulatory agents are often used in the systemic treatment of non-infectious uveitis. These drugs consist of corticosteroids, conventional immunosuppressives, and biological agents. As it is known that they suppress the immune system, the most important concern associated with immunomodulatory therapy (IMT) is the increased risk of infection. The World Health Organization declared COVID-19 a pandemic on 11 March 2020. Although severe acute respiratory distress syndrome secondary to SARS-CoV-2 infection may develop in all people, patients who receive IMT may be at higher risk in terms of both the transmission of the infection and more severe disease course. Therefore, guidelines on the management of patients receiving IMT due to uveitis during the pandemic are needed. In this review, we examined the immunomodulatory drugs used in the treatment of uveitis in terms of infectious complications and the data of patients who received IMT during the COVID-19 pandemic and discussed recommendations for the use of these drugs. According to the latest information, patients who receive IMT may continue their treatment as long as there are no disruptions in regular complete blood count (especially white blood cell count >4,000/μL) and liver and kidney function tests. Patients diagnosed with COVID-19 should be managed with a multidisciplinary approach.
Introduction
Coronavirus disease 2019 (COVID-19), caused by the novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was first reported in the city of Wuhan (Hubei province, China). After spreading to other cities and countries, the World Health Organization declared it a pandemic on March 11, 2020 (World Health Organization, Situation Report-51). Due to the virus’ unclear route of transmission, its rapid spread, and the considerable rate of serious complications it causes, the disease has become a global public health problem of worldwide concern. Although the information we have about COVID-19 is limited, it is steadily increasing. Patients using immunomodulatory therapy (IMT), both conventional and biological agents, constitute a population that is potentially vulnerable to infectious diseases and require diligent and close follow-up.
The aim of this review was to investigate the safety and use of immunomodulatory drugs for the treatment of ocular diseases during the COVID-19 pandemic.
Conclusions
In the light of previous clinical experience and the information obtained during the COVID-19 pandemic, albeit short term data, IMT does not appear to increase the risk of SARS-CoV-2 infection or the severity of the disease. Except for patients receiving high-dose systemic corticosteroid therapy and those at risk for severe COVID-19 infection, guidelines generally recommend continuing IMT for patients who need it. Each patient’s condition should be evaluated individually when making treatment decisions. Patients should be treated using a multidisciplinary approach, taking into account systemic risk factors, the patient’s potential COVID-19 infection status, and the type and severity of uveitis.


