Rhinogenic optic neuropathy with hemianopia caused by sinusitisKosuke Oka, M.D., Ph. D.1, Wataru Ando2, Hideharu Hagiya, M.D. Ph. D1., Takaya Higaki, M.D., Ph. D.3and Fumio Otsuka, M.D., Ph.D.11Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan;2Okayama University Medical School, Okayama 700-8558, JapanKey words: Cat scratch disease, lymphadenopathy and subcutaneous abscess3Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesKey words : Rhinogenic optic neuropathy and temporal hemianopiaCorresponding author : Kosuke Oka, M.D., Ph.D.Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.Tel: +81-86-235-7342 Fax: +81-86-235-7345E-mail: [email protected] clinical messages :A patient complained of acute right vision loss and headache. A computed tomography scan revealed sinusitis in the right ethmoid sinus that was compressing the optic nerve and emergency endoscopic sinus surgery was performed.