目的　探索一种改良矫正术治疗老年上睑松弛的临床效果。  方法　自2016年6月~2019年3月应用改良术式矫正老年上睑松弛136例。设计“鱼豚状”切口ACBDA，A点位于眉下缘距眉头0.5~1.0 cm处，B点在同侧鼻翼与外眦角连线的延长线上，于外眦角E处画一垂直线与弧线AB相交于O点，在O点的上下方设等距两点C和D。B点可根据鱼尾纹的程度适度外移。保留眉头及部分眉体、切除ACBDA连线内全部眉尾及眉周皮肤，上提固定眉脂肪垫，悬吊固定眉下缘的眼轮匝肌，分层美容缝合切口。  结果　随访6个月均未出现上睑松弛及鱼尾纹，手术效果满意；随访6~12个月有46例，4例出现外眦上睑皮肤轻微下垂，余者效果满意。  结论　改良上睑松弛矫正术方法简单，矫正老年严重上睑松弛效果良好，值得临床推广。

Objective　To explore the effect of an modified diorthosis on upper eyelid relaxation in old age.　Methods　One hundred and thirty-six cases of patients with the modified diorthosis on upper eyelid relaxation from June 2016 to March 2019 were collected. An incision line ACBDA with the appearance of "dolphin-like" incision was designed. Point A was located at the lower edge of the eyebrows about 0.5~1 cm. Point B was on the extension line of connecting line between the ipsilateral nasal alar and the lateral canthus. A vertical line at lateral canthus angel E and arc line AB was intersecting at point A.  Two equidistant points C and D above and below point O were set. Point B was flexible according to the degree of crow’s feet. The eyebrow and part of the eyebrow body were preserved, and the inner eyebrow tail and the surrounding skin in the ACBDA line were completely resected, the eyebrow fat pad was lifted and fixed, the orbicularis oculi muscle on the lower brow was suspended and fixed, the cosmetic incision was sutured by layers.    Results    No blepharochalasis and crow's-feet occurred within 6 months after follow-up, and the result of operation was satisfactory. There were 46 cases on 6 months to 12 months follow-up, and 4 cases with skin ptosis of lateral canthus and upper eyelid. The remaining surgical results were satisfactory.    Conclusions     The modified diorthosis on the upper eyelid relaxation is simple. It is a good method to correct severe upper eyelid relaxation in the elderly and is worthy of clinical application.