涂云海 Yunhai TuChinaSpeakerEndoscopic removal of orbital apex massThe orbital apex mass has always been a difficult point in orbital surgery. The anatomical space of the orbital apex is narrow, and transorbital surgery often leads to serious complications, even blindness. We have been committed to minimally invasive ophthalmic endoscopic surgery. Endoscopic transnasal surgery has opened up a new world for the removal of orbital apex tumors, and we gradually mastered the operation of dual instruments with both hands under endoscopy by one doctor. However, there is still no solution for the orbital apex mass upper lateral of the optic nerve . We designed a surgical approach combining endoscopic transnasal and transperiosteal space surgery. Starting from the foreign body in the orbital apex, continuous practice has been carried out to successfully remove the orbital apex mass upper lateral of the optic nerve. Thus, we have achieved a complete surgical system for endoscopic removal of orbital apex mass