Within the flap are several layers of important structures which are preserved. Their continued presence prevents scar formation so that the patient sees well after the surgery.

• 此瓣之内蕴藏著不少重要组织层,此手术能将所有组织层保存妥当,而其妥善之保存防止了疤痕的形成,故患者手术后能如常看清景物。