【 文献重点摘要 】

Clarification is needed regarding the definitions and classification of groove and hollowness of the infraorbital region depending on the cause, anatomical characteristics, and appearance. Grooves in the infraorbital region can be classified as nasojugal grooves (or folds), tear trough deformities, and palpebromalar grooves; these can be differentiated based on anatomical characteristics. They are caused by the herniation of intraorbital fat, atrophy of the skin and subcutaneous fat, contraction of the orbital part of the orbicularis oculi muscle or squinting, and malar bone resorption. Safe and successful treatment requires an optimal choice of filler and treatment method. The choice between a cannula and needle depends on various factors; a needle is better for injections into a subdermal area in a relatively safe plane, while a cannula is recommended for avoiding vascular compromise when injecting filler into a deep fat layer and releasing fibrotic ligamentous structures. The injection of a soft tissue filler into the subcutaneous fat tissue is recommended for treating mild indentations around the orbital rim and nasojugal region. Reducing the tethering effect of ligamentous structures by undermining using a cannula prior to the filler injection is recommended for treating relatively deep and fine indentations. The treatment of mild prolapse of the intraorbital septal fat or broad flattening of the infraorbital region can be improved by restoring the volume deficiency using a relatively firm filler.

Keywords

Tear trough / Skin aging / Eyelids / Subcutaneous tissue / Dermal fillers

需要根据病因、解剖特征和外观对眶下区沟和凹陷的定义和分类进行澄清。眶下区的沟可分为鼻颈沟(或皱襞)、泪沟畸形和睑颊沟；这些可以根据解剖特征来区分。它们是由眶内脂肪突出、皮肤和皮下脂肪萎缩、眼轮匝肌或斜视的眶部收缩和颧骨吸收引起的。安全和成功的治疗需要填充物和治疗方法的最佳选择。插管和针头的选择取决于各种因素；在相对安全的平面内，针头更适于注射到皮下区域，而当将填充物注射到深层脂肪层并释放纤维化韧带结构时，建议使用套管来避免血管损伤。建议将软组织填充剂注射到皮下脂肪组织中，以治疗眶缘和鼻颈部周围的轻度凹陷。为了治疗相对较深和较细的凹陷，建议在注射填充剂之前通过使用套管破坏来减少韧带结构的束缚效应。眶内隔脂肪轻度脱垂或眶下区广泛变平的治疗可以通过使用相对坚固的填充物恢复体积不足来改善。

关键词

泪沟/皮肤老化/眼睑/皮下组织/真皮填充物