Corneal epithelial healing velocity was determined in patients admitte
d to excimer laser photo refractive keratectomy, by daily video planim
etry of the denuded area until complete healing. The epithelial healin
g process was followed in fellow eyes with regard to intervals between
surgery of the two eyes of 1 to 10 weeks. In cases where the fellow e
ye was treated at one week after the first eye, the lesions healed sig
nificantly faster in the second eye as compared to patients with longe
r delay between the two operations.