Fig. 1

Conjunctival impression cytology specimens. (A) Representative specimen of pSS patients. Goblet cells were less numerous, epithelial cells were enlarged and showed an abnormal appearance of squamous metaplasia with small and pyknotic nuclei. (B) Representative specimen from healthy controls. Goblet cells were abundant, and epithelial cells were small, round, and evenly distributed. Arrowheads indicate goblet cells. (Scale bar = 50 μm)