COVID‑19

Prolonged face mask use might worsen dry eye symptoms

Purpose: The aim of this study was to explore whether prolonged and consistent face mask use might be
associated with worsening of dry eye symptoms in patients with dry eye disease (DED). Methods: Subjects
with a previous diagnosis of DED. Their OSDI scores were compared with those recorded in Fall 2019
using the Wilcoxon paired test. Participants were stratified by face mask use: heavy (Group A) or
standard (Group B) face mask users. Heavy use was defined as wearing any type of face mask for at least

Von Willebrand factor with increased binding capacity is associated with reduced platelet aggregation but enhanced agglutination in COVID-19 patients: another COVID-19 paradox?

Patients with Coronavirus-associated disease-2019 (COVID-19) display alterations of the hemostatic system and the presence
of a prothrombotic status frequently leading to vascular complications. However, the impact of COVID-19 on platelet
activity, aggregation and agglutination still needs to be clarified. We measured total levels of von Willebrand factor (vWF)
and vWF binding to the platelet glycoprotein (Gp) complex (GPIb-IX-V), in a cohort of COVID-19 patients admitted to the

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