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Thin-Film Buckling Theory and Clinical Application of the Mechanism of Double Eyelid Formation

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  • Eyelid Surgery
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Abstract

Background

The mechanism underlying the formation of upper eyelid creases has been the subject of extensive study and ongoing debate. This research aims to elucidate the principles of upper eyelid creases formation, leveraging the membrane bending theory from engineering mechanics.

Methods

We developed an anatomical model of the eyelid and implemented the finite element analysis. Preprocessing and mesh division were conducted using HyperMesh, followed by computational analysis with Abaqus. This approach enabled the observation of dynamic changes in the upper eyelid during eye opening and closing.

Results

The study reveals that natural upper eyelid crease formation is influenced by multiple factors. These include the softer texture of the upper eyelid skin and the suborbicularis oculi fat, reduced rigidity at the eyelid crease, optimal contraction force of the upper eyelid, and the strategic placement of the pre-tarsal fat pad just above the eyelid crease.

Conclusions

Ultimately, our findings demonstrate the effectiveness of finite element analysis, grounded in membrane bending theory, in elucidating the dynamics of upper eyelid crease formation.

Level of Evidence IV

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Funding

This work was supported by the following grants: Nantong Science and Technology Development Plan Project MS2023043 (to C.C.Z).

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Correspondence to Ya-Yun Zhuang.

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No potential conflict of interest was reported by the authors.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Qiao, Q., Zhong, CC. & Zhuang, YY. Thin-Film Buckling Theory and Clinical Application of the Mechanism of Double Eyelid Formation. Aesth Plast Surg (2024). https://doi.org/10.1007/s00266-024-04085-z

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  • DOI: https://doi.org/10.1007/s00266-024-04085-z

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