Microscopic Characteristics of Lower Eyelid Retractors in Koreans.
10.3341/kjo.2011.25.5.344
- Author:
Won Kyung CHO
1
;
Ji Sun PAIK
;
Seung Ho HAN
;
Suk Woo YANG
Author Information
1. Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea. yswoph@catholic.ac.kr
- Publication Type:Original Article ; Comparative Study
- Keywords:
Koreans;
Lower eyelid retractors;
Microscopic structure
- MeSH:
Aged;
*Aging;
*Asian Continental Ancestry Group;
Cadaver;
Eyelids/*anatomy & histology;
Female;
Humans;
Male;
Oculomotor Muscles/anatomy & histology;
Republic of Korea
- From:Korean Journal of Ophthalmology
2011;25(5):344-348
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: To identify the microscopic characteristics of lower eyelid retractors in Korean individuals and to elucidate age-related changes in lower eyelid retractors. METHODS: Eighteen Korean lower eyelids from formalin-fixed cadavers were stained with Masson's trichrome. Specimens were divided into two groups based on age at death (group A, < or =65 years; group B, >65 years), and the microscopic findings were analyzed and compared by light microscopy. RESULTS: The capsulopalpebral fascia (CPF) had distinct junctions and no fusion with orbital septum in 14 eyelids (77.8%). The CPF was fused with the orbital septum in only two eyelids (11.1%). Although not significant, the inferior tarsal muscle was closer to the tarsus in group A (1.24 +/- 0.71 mm) than group B (2.14 +/- 1.18 mm, p = 0.07), and the tarsal height tended to be longer in group B (4.71 +/- 0.55 mm) than group A (4.16 +/- 1.01 mm, p = 0.20). Tarsal fatty infiltration was more evident in group B. CONCLUSIONS: The CPF was rarely fused with the orbital septum in our sample of Korean lower eyelids. Although we did not identify any remarkable age-related changes in lower eyelid structures, there was a tendency for the lower retractor to loosen from the tarsus and for increased fatty infiltration in the lower eyelids from elderly individuals.
