Phacoemulsification (PHACO) is the basic procedure of cataract extraction. Purpose. To assess the impact of PHACO on corneal epithelium layers in patients with pseudoexfoliation syndrome (PEX) by confocal in vivo microscopy. Methods. 24 patients with PEX syndrome and 18 patients without it were enrolled in the prospective study. In vivo confocal microscopy was performed with assessment of cellular density in corneal epithelial layers, degree of its desquamation, degree of Bowman membrane stiffening and dendritic cells density. Results. The epithelial cells density didn’t change significantly in groups. Confocal microscopy showed high density of dendritic cells and marked desquamation of the epithelium in patients with PEX (p < 0,05) after PHACO. (For citation: Potemkin VV, Varganova TS, Terekhova IV, Ageeva EV. The influence of phacoemulsification on various corneal layers in patients with pseudoexfoliation syndrome assessed with confocal in vivo microscopy. Ophthalmology Journal. 2017;10(3):29-34. doi: 10.17816/OV10329-34).