For more than half a century, Urrets-Zavalia syndrome (fixed dilated pupil) has been described as a postoperative complication of ophthalmic surgery. Since first reported as a complication of penetrating keratoplasty for keratoconus in patients receiving atropine, the characteristic features of Urrets-Zavalia syndrome have been expanded. In previous literature, a total of 110 cases resulted in ...

purpose : to report a patient with urrets-zavalia (u-z) syndrome after penetrating keratoplasty (pkp) in both eyes case report : a 22-year-old woman with keratoconus associated with a central full thickness scar in both eyes underwent pkp in her right eye that was postoperatively associated with a fixed dilated pupil and severe fibrin reaction, posterior synechiae and mild anterior sub capsular...

We report a case of pharmacologic regression of Urrets-Zavalia syndrome, following deep lamellar keratoplasty for severe keratoconus. Sympatholytic and parasympathomimetic drops were administered and a progressive reduction of mydriasis and restoring of pupillary kinetics were observed. Four years after surgery, it was resulting in only slight residual anisocoria.