然后使用无菌剪刀经皮肤和眼轮匝肌在外眦角处作一个朝向眶外侧缘长约1 cm的切口(左图)。
Sterile scissors are then used to make a horizontal incision through the skin and orbicularis muscle at the lateral canthal Angle 1 cm toward the lateral orbital rim (left image).
然后切开外眦韧带的外侧脚(右图)。
The lateral crus of the lateral canthus ligament is then incised (right image).
内眦韧带横压于泪囊的中部，几乎与总泪小管平行。
Inner canthal ligament projects on the middle of the lacrimal sac, almost equal to the level of common lacrimal canaliculus.
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