Slit lamps were used to photograph PBS (A, B, C) and Boxb (D, E, F) pretreated corneas. The clinical score (G) at 1, 3, 5d were also illustrated the disease severity. aP<0.05 vs 1d A. fumigatus group; bP<0.05 vs 3d A. fumigatus group; cP<0.01 vs 5d A. fumigatus group.