title: Corneal hysteresis in eyes undergoing phototherapeutic keratectomy.
authors: K L
authors: KL
authors: Qiu
authors: M Z
authors: MZ
authors: Zhang
mesh_terms: D003315:Cornea / Q000503:physiopathology*; D006801:Humans; D007429:Intraocular Pressure; D018903:Photorefractive Keratectomy