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(A) Photograph of the fluorescein stained right eye shows punctate staining pattern inferiorly on the cornea of a dry eye patient. (B) Fluorescent microscopy of polycarbonate filter shows singly stained cells throughout the filter (x40). (C) Polycarbonate filter stained with Diff-Quick and dissolved using a solution of chloroform showing a stained epithelial cell (x500).
