Yixin Sun,1,* Runzhu Liu,1,* Nanze Yu,1 Dingyue Zhang,2 Juan Chen,3 Jiuzuo Huang,1 Xiao Long1 1Division of Plastic Surgery, Department of Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China; 2Department of Clinical Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, People’s Republic of China; 3Institute of Medical Information/Medical Library, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People’s Republic of China*These authors contributed equally to this workCorrespondence: Jiuzuo Huang; Xiao Long, Division of Plastic Surgery, Department of Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1, Shuaifuyuan, Dongcheng District, Beijing, 100730, People’s Republic of China, Tel/Fax +86-1069158730, Email hjz1983@126.com; pumclongxiao@126.comPurpose: Incisional double eyelid blepharoplasty is the most common cosmetic operation in East Asia. Although numerous articles on surgical techniques have been published, complications, such as fold loss, asymmetry, and visible scars, still exist. To create a stable and dynamic double-eyelid crease, the author has introduced a modified technique of double-eyelid blepharoplasty.Patients and Methods: The authors introduced a new surgical technique to reduce complications and create reliable and dynamic double eyelids. The orbicularis oculi muscle of the lower flap was anchored on the tarsus and sutured with the distal part of the septal flap. The skin incision was closed by skin–septal flap–skin suture. Postoperative evaluations were assessed at the twelfth postoperative month.Results: One hundred ninety-three patients underwent double eyelidplasty with the TOS fixation technique. The mean follow-up duration was 18.6 months (range, 12– 30 months). In the aesthetic outcome evaluation, 88 (45.6%) patients had very much improved results, 56 (29.0%) had much improved results, 29 (15.0%) had improved results, 8 (4.1%) had no change and 12 (6.2%) had worse results. Complications included crease asymmetry (n=7, 3.6%), partial fold loss (n=8, 4.1%) and complete fold loss (n =5, 2.6%).Conclusion: Tarsus-orbicularis-septum (TOS) fixation is a reliable and flexible surgical technique for creating stable and dynamic double-eyelid creases.Keywords: double eyelidplasty, primarily blepharoplasty, orbital septum, tarsus