목적: Total maxillectomy with preservation of the orbital contents is more challenging when considering both functional and aesthetic perspectives. In this study, we analyzed functional results after globe-sparing total maxillectomy for maxillary squamous cell carcinoma with orbit invasion. 방법:A retrospective study was conducted with consecutive 100 patients who received maxillectomy for maxillary squamous cell carcinoma. Among them, in 26 cases, pre-operative radiologic evaluation showed orbit invasion of maxillary cancer. Orbit exenteration was done in 9 cases and eye-globe sparing total maxillectomy was done in 17 cases. Among them, in 15 cases, we could evaluate one year functional results after curative surgery. 결과:5-year overall survival rate of these 15 cases was 60%. Inferior orbit wall was removed in all 15 cases. Among 15 cases, resection of inferior portion of periorbit was done in 14 cases. Orbital fat was resected partially in 6 cases. Inferior, lateral and medical rectus muscles were partially removed in one case. Average pre-operative visual acuity of involved eye was 0.86 and average post-operative one year visual acuity was 0.54. Although some degree of lagophthalmos, lower eyelid ectropion, and exposure keratitis were found in all 15 cases, limited EOM was found in three cases(20%), hypoglobus in 3 cases(20%) and diplopia was found in two cases(13%). There was no relation between reconstruction method and orbit complication rate in this study 결론:After globe-sparing total maxillectomy for maxillary cancer with orbit invasion, severe ophthalmologic complication such as diplopia, hypoglobus, and limitation of eye movement was not frequent in this study. Invasion of orbit content such as periorbit or orbit fat is not the absolute indication for orbit extenteration. Globe-sparing maxillectoy with complete resection and appropriate reconstruction could give optimal functional results as well as good oncologic results.