Figure 6. Identification of conjunctivalization using immunofluorescence. Conjunctival epithelial phenotype (K13) is sparsely visible in the normal corneal specimen. However, the K13 marker identified in the injured cornea on day 7 confirmed corneal conjunctivalization even in mild, 30-s corneal injury (Algerbrush 30 s). The density of K13 has increased after increasing the duration of injury to 2 min (Algerbrush 2 min).