**2. Definition**

A classical definition of contact lens-associated infectious keratitis (CLAIK) includes a corneal epithelial defect or ulcer, accompanied by a stromal infiltrate, requiring corneal scraping and culturing [11]. However, corneal cultures are not readily available for all practitioners, suggesting a purely clinical definition [11]. Stapleton et al. proposed the following definition: a corneal infiltrate with an overlying epithelial defect and one or more of the following: lesions within the 4 mm of the central cornea, anterior chamber reaction, and pain [12].
