TNFRSF4 and Increased total eosinophil count: The aetiology of dupilumab-associated conjunctivitis is not fully understood but shares some common characteristics with atopic blepharoconjunctivitis and allergic eye disease—namely decrease in goblet cells, heightened OX40 ligand activity, eosinophilia and increased Demodex infestation due to changes in the ocular surface environment [10, 18–23].