Figure 5From: Collection of corneal impression cytology directly on a sterile glass slide for the detection of viral antigen: An inexpensive and simple technique for the diagnosis of HSV epithelial keratitis – A pilot study Impression cytology smear stained by Papanicolaou stain. This specimen was obtained from a patient with a classical dendritic ulcer clinically diagnosed as HSK. Note the presence of a multinucleated giant cell (arrow), × 500.Back to article page