Effect of exogenous keratinocyte growth factor on corneal epithelial migration after photorefractive keratectomy.

Purpose: To investigate the effect of topical keratinocyte growth factor (KGF) on wound healing after photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK).

Setting: Department of Ophthalmology, Rayne Institute, St. Thomas' Hospital, London, United Kingdom, St.