Dear Editor,I am Dr.Xian-Ning Liu,from the Institute of Ophthalmology of Xi’an First Hospital in Xi’an,Shaanxi Province,China.I write to present a case report of corneal ulcer caused by Schizophyllum commune(S.commune).Mycotic keratitis is one of the most severe causes of corneal blindness in developing countries,such as China and India[1-2].