Ferguson A W, Chadha V, Kearns P P
Department of Ophthalmology, Queen Margaret Hospital, KY12 0SU Scotland.
Surgeon. 2006 Apr;4(2):87-9. doi: 10.1016/s1479-666x(06)80036-3.
Medial involutional ectropion without excessive lateral canthal tendon laxity is often corrected using the lazy-T procedure. This procedure however carries a potential risk of canalicular damage, and locating the lower lid retractors can be difficult. We have developed a modification. Replacing the tarso-conjunctival diamond with a subconjuctival pocket posterior and inferior to the punctum, into which the lower lid retractors are advanced from the base of the wedge excision, which effectively ensures plication of the lower lid retractors while maintaining a straightforward procedure. The follow-up data on five procedures showed surgical and symptomatic success in all patients, without complications. These results confirm the efficacy of this modification of the lazy-T procedure in the correction of medial lower lid ectropion.
对于没有外眦韧带过度松弛的内侧退行性睑外翻，通常采用改良T形术进行矫正。然而，该手术存在损伤泪小管的潜在风险，并且定位下睑缩肌可能会很困难。我们对此进行了改良。将睑板结膜菱形改为泪点后方和下方的结膜下袋，下睑缩肌从楔形切除的底部推进到该结膜下袋中，这有效地确保了下睑缩肌的折叠，同时保持手术操作简单直接。5例手术的随访数据显示，所有患者手术均成功且症状改善，无并发症。这些结果证实了改良T形术在矫正内侧下睑外翻中的有效性。
