Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in Asian
Background: The upper eyelid skin is considered to be gradually thicker going upward. However, the skin thickness can vary among individuals. This has not yet been confirmed. Objective: To microscopically examine the skin thickness at 5 and 12 mm from the eyelid margin in Asian individuals. Methods:...
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Korean Society of Korean Cosmetic Surgery and medicine
2024-12-01
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| Series: | Journal of Cosmetic Medicine |
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| Online Access: | http://www.jcosmetmed.org/journal/view.html?doi=10.25056/JCM.2024.8.2.100 |
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| author | Hirohiko Kakizaki Chrisha Habaluyas Osama AlSheikh Munekazu Naito Yasuhiro Takahashi |
| author_facet | Hirohiko Kakizaki Chrisha Habaluyas Osama AlSheikh Munekazu Naito Yasuhiro Takahashi |
| author_sort | Hirohiko Kakizaki |
| collection | DOAJ |
| description | Background: The upper eyelid skin is considered to be gradually thicker going upward. However, the skin thickness can vary among individuals. This has not yet been confirmed. Objective: To microscopically examine the skin thickness at 5 and 12 mm from the eyelid margin in Asian individuals. Methods: A histological evaluation was conducted on 20 upper eyelids (10 right and 10 left) from 14 Japanese cadavers (age range: 36-97 years old, average: 68.9). The specimens were fixed in 10% formalin and stained with Masson’s trichrome. Skin thickness was measured at 5 and 12 mm from the eyelid margin and compared. The eyelid margin was defined as the anterior edge of the upper tarsal plate. Statistical analyses were conducted using the Mann-Whitney U-test, with a significance level set at 0.05. Results: The skin at 5 and 12 mm from the upper eyelid margin showed statistically similar thickness (p=0.064). However, the skin thickness distribution was categorized into four distinct types. The first type was much thicker at 12 mm (over 2 times thicker), observed in four eyelids from three cases. The second type showed moderately thicker skin at 12 mm (between 1.5 and 2 times thicker), found in three eyelids in three cases. The next type exhibited similar thickness at both 5 and 12 mm. It was divided into two subgroups: one coherently thin at both positions (less than 0.5 mm, four eyelids from three cases), and the other demonstrated consistently thick skin at both positions (over 0.5 mm, nine eyelids from eight cases). Conclusion: The upper eyelid skin thickness was statistically similar at 5 and 12 mm from the eyelid margin, but four distinct skin thickness types were identified based on the upward distribution. Level of Evidence: Level II |
| format | Article |
| id | doaj-art-edac601172914b4a9faf78bec681c330 |
| institution | Kabale University |
| issn | 2586-0585 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Korean Society of Korean Cosmetic Surgery and medicine |
| record_format | Article |
| series | Journal of Cosmetic Medicine |
| spelling | doaj-art-edac601172914b4a9faf78bec681c3302025-01-06T05:22:11ZengKorean Society of Korean Cosmetic Surgery and medicineJournal of Cosmetic Medicine2586-05852024-12-018210010310.25056/JCM.2024.8.2.100JCM.2024.8.2.100Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in AsianHirohiko Kakizaki0Chrisha Habaluyas1Osama AlSheikh2Munekazu Naito3Yasuhiro Takahashi4Department of Oculoplastic, Orbital & Lacrimal Surgery, Aichi Medical University Hospital, Nagakute, JapanDepartment of Oculoplastic, Orbital & Lacrimal Surgery, Aichi Medical University Hospital, Nagakute, JapanKing Khaled Eye Specialist Hospital, Riyadh, Saudi ArabiaDepartment of Anatomy, Aichi Medical University, Nagakute, JapanDepartment of Oculoplastic, Orbital & Lacrimal Surgery, Aichi Medical University Hospital, Nagakute, JapanBackground: The upper eyelid skin is considered to be gradually thicker going upward. However, the skin thickness can vary among individuals. This has not yet been confirmed. Objective: To microscopically examine the skin thickness at 5 and 12 mm from the eyelid margin in Asian individuals. Methods: A histological evaluation was conducted on 20 upper eyelids (10 right and 10 left) from 14 Japanese cadavers (age range: 36-97 years old, average: 68.9). The specimens were fixed in 10% formalin and stained with Masson’s trichrome. Skin thickness was measured at 5 and 12 mm from the eyelid margin and compared. The eyelid margin was defined as the anterior edge of the upper tarsal plate. Statistical analyses were conducted using the Mann-Whitney U-test, with a significance level set at 0.05. Results: The skin at 5 and 12 mm from the upper eyelid margin showed statistically similar thickness (p=0.064). However, the skin thickness distribution was categorized into four distinct types. The first type was much thicker at 12 mm (over 2 times thicker), observed in four eyelids from three cases. The second type showed moderately thicker skin at 12 mm (between 1.5 and 2 times thicker), found in three eyelids in three cases. The next type exhibited similar thickness at both 5 and 12 mm. It was divided into two subgroups: one coherently thin at both positions (less than 0.5 mm, four eyelids from three cases), and the other demonstrated consistently thick skin at both positions (over 0.5 mm, nine eyelids from eight cases). Conclusion: The upper eyelid skin thickness was statistically similar at 5 and 12 mm from the eyelid margin, but four distinct skin thickness types were identified based on the upward distribution. Level of Evidence: Level IIhttp://www.jcosmetmed.org/journal/view.html?doi=10.25056/JCM.2024.8.2.100four types; microscopically; similar; skin thickness; thicker |
| spellingShingle | Hirohiko Kakizaki Chrisha Habaluyas Osama AlSheikh Munekazu Naito Yasuhiro Takahashi Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in Asian Journal of Cosmetic Medicine four types; microscopically; similar; skin thickness; thicker |
| title | Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in Asian |
| title_full | Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in Asian |
| title_fullStr | Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in Asian |
| title_full_unstemmed | Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in Asian |
| title_short | Comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in Asian |
| title_sort | comparison of upper eyelid skin thickness at 5 mm and 12 mm from the eyelid margin in asian |
| topic | four types; microscopically; similar; skin thickness; thicker |
| url | http://www.jcosmetmed.org/journal/view.html?doi=10.25056/JCM.2024.8.2.100 |
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