Asymmetry of soft tissue thickness of upper eyelids: a clinical study of Shanghai undergraduates undergoing double eyelid surgery
10.3760/cma.j.issn.1671-0290.2012.05.005
- VernacularTitle:上海地区女大学生行重睑成形术者上睑软组织不对称性研究
- Author:
Qi ZHOU
;
Peijun WANG
;
Shuai YANG
;
Lei ZHANG
;
Bo WANG
;
Minfei QIANG
;
Shen QU
;
Xiangsong HU
;
Yanlong BI
- Publication Type:Journal Article
- Keywords:
Eyelid;
Magnetic resonance imaging (MRI);
Orbicularis oculi muscle;
Intra orbital septum fat
- From:
Chinese Journal of Medical Aesthetics and Cosmetology
2012;(5):334-337
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the asymmetry of the soft tissue thickness of upper eyelids in Shanghai female undergraduates undergoing double eyelid surgery.Methods Data were collected in 565 female students from Shanghai universities.Before surgery,oblique sagittal view images of the upper eyelids by 3.0T MRI were obtained and the following parameters were measured: soft tissue thickness at upper tarsal plate margin and upper central tarsal plate,sub-eyebrow and intra-orbital septum fat pad areas,and whole upper eyelid soft tissue areas.The resected orbicularis and intra-orbital septum fat were weighed by a highly accurated electronic balance.The eyelid asymmetry index (EAI) was calculated.Results The MRI (U/U2) central tarsal plate soft tissue thickness were:4.46±0.90 in the right side and 3.78±1.01 in the left; the intra orbital septum fat areas were:172.33±49.29 in the right and 136.34±37.42 in the left; the whole tissue areas were: 697.13±146.99 in the right and 500.66±158.87 in the left (P＜0.01 for all).The weight of the resected orbicularis oculi muscle and intra orbital septum fat pad were (0.18±0.05) g and (0.17±0.06) g for the right side,and (0.15±0.04) g and (0.06±0.05) g for the left side (P＜0.01 for all),respec tively.The orbicularis EAI was 0.17±0.06,and the intra orbital septum fat EAI was 0.41 ±0.08.Conclusions The asymmetric phenomenon of the upper eyelids' soft tissue thickness is commonly found in the Shanghai female undergraduates,and the main manifestation is that orbicularis and intra orbital septum fat in right side are thicker than that in the left.
