<正>Dear Editor,I am Dr.Kang Xue,from the Department of Ophthalmology at the Eye,Ear,Nose and Throat Hospital of Fudan University in Shanghai,China.I am writing to present three case reports of the removal of visual function alterations in cavernous hemangioma of the orbital apex after surgery.Cavernous hemangioma is a relatively common primary benign orbital tumor in adults~([1]).Although histopathologically benign,a cavernous hemangioma may often cause proptosis and interfere with optic nerve function,necessitating surgical intervention~([2]).Patients should be followed with serial