Composite tissue allotransplantation is a new option in reconstruction surgery,but the immunological rejection is accepted as an public medical problem after surgery.As the number of composite tissue allotransplantation increases,postoperative immunosuppression becomes the new hot.This article will illustrate and summarize the progess of postoperative immunesuppression.

Objective Patients with mild or moderate blepharoptosis performed with double eyelid operation only will lead to high complication rates,such as eyelid crease disappearance,unphysiological appearance.In such cases,utilizing levator aponeurosis can create more physiological double eyelid and correct blepharoptosis in the meantime.Methods Levator aponeurosis is utilized as "connecting tissue" to transmit dynamic "motor power" of levator muscle to upper eyelid.Levator advancement was performed at the same time to correct blepharoptosis.Results A total of 74 patients (125 eyes) were operated on in this study.117 eyes (93.6％) showed adequate blepharoptosis correction results,8 eyes (6.4％) showed inadequate correction results.Sixty six cases (89.2％) showed good symmetry results,5 cases (6.8％) showed fair results,3 cases (4％) showed bad symmetry results.One hundred and fourteen eyes (91.2％) showed stable crease,11 eyes (8.8％) showed fair results,no disappearance result was observed in this study.No scar hypertrophy or blepharoptosis on the upper eyelid was encountered.Conclusions This new technique uses pretarsal levator aponeurosis to connect levator muscle and upper eyelid skin,it transmits the dynamic power of the levator muscle to the lid skin directly,which created palperbral crease more anatomically and physiologically.In the meantime,levator advancement can be performed to correct blepharoptosis.Furthermore,"skin adhesion" is formed between levator aponeurosis and dermis in a plane planar manner,allowing for more stable palperbralpalpebral crease and more preserved,and preserving orbicularis oculi in situ,leaving no gap in skin and thus reducing eyelid scar formation.

Objective: To establish a treatment protocol for severe blepharoptosis. This protocol helps to achieve better accuracy and more stable result. Methods: Evaluate levator muscle function pre-operatively. When levator function ≤ 1 mm, frontalis suspension technique was performed. When levator function more than 1 mm, technique of levator resection, combining excision of tarsus and levator, and tarsus-levator-CFS suspension was performed accordingly until it reaches adequate correction result during the surgery. Results: A total of 275 severe ptosis patients was included from January 2015 to June 2016. 52 cases (388 eyes) received levator resection. 162 cases received combining excision of tarsus and levator. 24 cases received tarsus-levator- CFS suspension. 37 cases received frontalis suspension. 326 eyes achieved adequate correction results. 62 cases were still undercorrected. The asymmetry result showed that 76 cases presented good symmetry. 142 cases presented moderate asymmetry and 57 showed severe asymmetry. Conclusions The new treatment protocol shows a satisfactory result with better accuracy and more stable correction for severe ptosis correction.