J Korean Ophthalmol Soc > Volume 55(4); 2014 > Article
Journal of the Korean Ophthalmological Society 2014;55(4):498-505.
DOI: https://doi.org/10.3341/jkos.2014.55.4.498    Published online April 15, 2014.
The Difference in Filaments between Corneal Occlusion and Keratoconjunctivitis Sicca.
Kyung Sup Lim, Kyoung Woo Kim, Yeoun Sook Chun, Jae Chan Kim
Department of Ophthalmology, Chung-Ang University College of Medicine, Seoul, Korea. jck50ey@kornet.net
실모양각막염의 발생에 건성 각결막염과 각막의 폐쇄가 미치는 영향의 비교
임경섭⋅김경우⋅전연숙⋅김재찬
Department of Ophthalmology, Chung-Ang University College of Medicine, Seoul, Korea
Abstract
PURPOSE
To examine histopathological findings of filamentary keratitis due to corneal occlusion. METHODS: We analyzed filamentary keratitis in 11 eyes with corneal occlusion due to blepharospasm, ptosis and paralytic strabismus, 11 eyes with keratoconjunctivitis sicca, and 13 eyes with both corneal occlusion and keratoconjunctivitis sicca. The following protocols were used for filament analyses: slit lamp examination for counting filament numbers, impression cytology for grading mucin content, and histopathology (hematoxylin and eosin staining) and immunohistochemistry (with AE1/AE3, MUC1, 5AC, 16) for histological analysis. RESULTS: Slit lamp biomicrosopy showed a significantly smaller number of filaments in the corneal occlusion group (11 eyes, 2.7 +/- 1.4) than the keratoconjunctivitis sicca group (11 eyes, 5.1 +/- 2.2, p = 0.009). In impression cytology, the standard photograph grade of mucin content was significantly higher in the corneal occlusion group (2.7 +/- 0.9) than the keratoconjunctivitis sicca group (1.9 +/- 0.8, p = 0.034). On pathological exam, filaments showed a central filament with peripheral mucin. The central filaments were composed of core and cortex, and the core contained multiple deformed nuclei. However, the cortex was not stained by AE1/AE3, MUC1, 5AC, 16. CONCLUSIONS: Filamentary keratitis due to corneal occlusion showed a smaller number of filaments and higher mucin content than filamentary keratitis induced by keratoconjunctivitis sicca and should be considered during treatment.
Key Words: Corneal occlusion;Filament keratitis;Keratoconjunctivitis sicca


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