Phase contrast micrographs of the corneal keratocytes at passage 1, 48 hours after culturing in four different media. A) basal medium, FD; B) FD with 0.025% AH; C) medium containing serum, FDS; D) FDS with 0.025% AH. Thin arrow (→) showed fibroblast with dendritic morphology with multiple extended cytoplasmic processes. Thick arrow (➡) showed fusiform-shaped cells. Supplementation of 0.025% AH promotes higher cell density in both FD and FDS media (50X).