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).
内侧延伸不应该超过内眦范围，外侧延伸不应该超出外侧眶缘。
The medial extension should not exceed the inner extent of the medial canthus and the lateral one should not extend beyond the lateral orbital rim.
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