Related Experiment Video
Updated: Feb 10, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
Published on: July 8, 2025
[Effectiveness of retro-orbicularis oculi fat resection in Park double eyelid surgery to correct swollen upper
Yanhui Dong1, Zhe Cao1, Xiaoqin Liang2
1Institute of Reconstructive Plastic Surgery, Weifang Medical University, Weifang Shandong, 261042, P.R.China.
Objective:
To investigate the effectiveness of retro-orbicularis oculi fat resection in Park double eyelid surgery to correct the swollen upper eyelid.
Methods:
Between September 2015 and July 2016, partial resection of the retro-orbicularis oculi fat was performed on 32 cases with bilateral swollen upper eyelids in Park double eyelid surgery. There were 10 males and 22 females with an average age of 25 years (range, 19-32 years). The patients had normal function of the levator muscle, and had no history of double eyelid surgery.
Results:
All the incisions healed by first intention. There was no obvious congestion, swelling, levator muscle dysfunction. All patients were followed up 2-14 months, with an average of 10 months. The double eyelid fold was naturally smooth, without depressed scar; blepharochalasis was obviously improved, and the function of upper eyelid levator muscle was normal. All patients were satisfied with the aesthetic effect.
Conclusion:
Park double eyelid surgery and partial resection of retro-orbicularis oculi fat can effectively improve the aesthetic effect in patients with swollen upper eyelid, and can achieve the perfect function and appearance.
Related Concept Videos
Distance Corrections
Power Factor Correction
C–C Bond Cleavage: Retro-Aldol Reaction
In the first step, as depicted in Figure 1, the base deprotonates the β-hydroxy ketone at the hydroxyl group to form an alkoxide ion.
Arteries of the Upper Limbs
Veins of Upper Limbs
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
Fixing Double-strand Breaks

