Diabetic retinopathy treatment and management during the COVID-19 pandemic

Abstract

Background/Aim: Diabetic macular edema (DME) is a common retinal disease and is the most common cause of vision loss due to diabetic retinopathy. During the COVID-19 pandemic, there has been a serious decrease in hospital visits due to both the measures taken by governments and the anxiety of patients fearful of contracting COVID-19. The aim of this study is to determine the problems occurring during the COVID-19 pandemic period in patients treated with intravitreal (IV) injection for diabetic retinopathy, and to provide recommendations for treatment management in these patients. Methods: Twenty-nine eyes of 17 patients who were diagnosed with DME were included. The frequency of hospital visits, treatments performed, and detailed ophthalmological examination findings, including optical coherence tomography findings and glycated haemoglobin (HbA1c) values, were recorded in the period before the COVID-19 pandemic. During the COVID-19 pandemic period, the detailed ophthalmological examination findings and HbA1c values were noted after the patients who had delayed their routine control time (>90 days) applied to the hospital. New treatments were planned according to the current situation. Results: Seventeen patients were included in the study; 10 were female (58.8%) and seven were male (41.2%). The mean time interval between following visits was 45.5 (5.9) days during the pre-pandemic period, but it increased to 110.4 (13.5) days during the COVID-19 pandemic period (P<0.001). Visual acuity (LogMAR) was 0.4 (0.4) in the pre-pandemic period and 0.8 (0.5) during the COVID-19 pandemic period (P=0.003). Central macular thickness was 300.1 (85.6) µm in the pre-pandemic period and it increased to 387.1 (144.5) µm during the COVID-19 pandemic period (P=0.007). In three patients, complications of diabetic retinopathy that could not be cured by medical treatment developed and surgical treatment was recommended. Conclusions: Delays in the treatment of diabetic retinopathy may cause permanent impairment in visual functions. The COVID-19 pandemic has caused an increase in the hospital visit intervals of patients, and this situation has resulted in disruptions in the follow-up and treatment of patients with diabetic retinopathy. Alternative diagnosis and treatment practices are needed in order to manage these and similar processes smoothly.

Keywords

• COVID-19
• Diabetic retinopathy
• Intravitreal injection
• Optical coherence tomography

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