Patipa M
Department of Ophthalmology-Oculoplastic Surgery, Good Samaritan Medical Center, West Palm Beach, Fla.
Plast Reconstr Surg. 1993 Mar;91(3):456-62. doi: 10.1097/00006534-199303000-00011.
Lower eyelid laxity is a problem commonly encountered in patients undergoing lower eyelid blepharoplasty. Two problems associated with the numerous surgical procedures used for the management of this condition are (1) postoperative alteration of the shape of the palpebral fissure and lateral canthal angle and (2) difficulty with appropriate suture positioning or placement when reattaching the resected lateral canthal tendon. To address these problems, the surgical technique of lateral canthal tendon resection was modified by preserving the lateral conjunctiva, thus maintaining normal anatomic landmarks and ensuring proper suture placement. To date, this technique has been performed effectively on 50 patients who demonstrated mild to moderate eyelid laxity during preoperative evaluation for lower eyelid blepharoplasty. The only complication encountered has been undercorrection in one patient. The benefits of this procedure have been prevention of alteration of the palpebral fissure or canthal angle shape, greater ease and more accurate suture placement when reattaching the lateral canthal tendon, and avoidance of the need for full-thickness eyelid resection.
下睑松弛是接受下睑成形术的患者中常见的问题。用于处理这种情况的众多外科手术存在两个问题：（1）术后睑裂和外眦角形状改变；（2）重新连接切除的外眦肌腱时，难以正确定位或放置缝线。为了解决这些问题，通过保留外侧结膜对外眦肌腱切除术的手术技术进行了改良，从而维持正常的解剖标志并确保正确的缝线放置。迄今为止，该技术已在50例患者中有效实施，这些患者在术前评估下睑成形术时表现为轻度至中度眼睑松弛。唯一遇到的并发症是1例患者矫正不足。该手术的益处包括防止睑裂或眦角形状改变、重新连接外眦肌腱时更容易且更准确地放置缝线，以及避免全层眼睑切除的需要。
