<正>INTRODUCTION Urrets-Zavalia was first described as a syndrome consisting of a fixed,dilated pupil with iris atrophy following penetrating keratoplasty(PKP)in 1963 and back then it was thought that this syndrome was only related to keratoconus patients~([1]).Other findings that were not essential for the diagnosis were posterior synechiae,ectropion uvea,pigment dispersion,anterior subcapsular lens opacities and secondary glaucoma syndrome~([1]).Subsequently,this syndrome was described after PKP for corneal dystrophy,deep anterior lamellar keratoplasty(DALK),descemet