| Analysis of Tear Meniscus Change after Strabismus Surgery Using Optical Coherence Tomography. |
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Ji Hye Kim, Che Ron Kim, Seong Jae Kim, In Young Chung, Seong Wook Seo, Ji Myong Yoo |
1Department of Ophthalmology, Gyeongsang National University College of Medicine, Jinju, Korea. yjm@gnu.ac.kr
2Gyeongsang Institute of Health Science, Gyeongsang National University, Jinju, Korea. |
| 사시수술 후 빛간섭단층촬영을 이용한 눈물띠의 변화 분석 |
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김지혜1⋅김체론1⋅김성재1,2⋅정인영1,2⋅서성욱1,2⋅유지명1,2 |
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경상대학교 의과대학 안과학교실1, 경상대학교 건강과학연구원2 |
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| Abstract |
PURPOSE
In this study, the changes in ocular surface parameters and tear meniscus after strabismus surgery when treated with or without artificial tears were evaluated using optical coherence tomography (OCT). METHODS: The present study included 30 patients who received bilateral lateral rectus recession surgery for exotropia. The patients instilled artificial tear eye drops only in the left eye. Before and 2, 4, 8, and 12 weeks after surgery, tear film break-up time (BUT), Schirmer's test, corneal staining test, tear meniscus height and area were measured using OCT and compared in both eyes. Before and 8 weeks after surgery, conjunctival compression cytology test was performed. RESULTS: The mean patient age was 8.7 years. After 8 weeks, BUT and corneal staining scores were 12.3 ± 1.5 seconds and 1.3 ± 0.4 in patients treated with artificial tears and 9.5 ± 1.0 seconds and 2.0 ± 0.7 in patients not treated with artificial tears (both p < 0.000). Four weeks after surgery, tear meniscus height and area using OCT were 290.2 ± 42.3 µm and 566.7 ± 48.2 pixels in patients treated with artificial tears and 246 ± 45.5 µm and 504.0 ± 29.7 pixels in patients not treated with artificial tears (p = 0.045 and p = 0.019, respectively). Goblet cell count was significantly different between the eyes 8 weeks after surgery (p = 0.033). CONCLUSIONS: Instability of tear meniscus can be detected after strabismus surgery using BUT, Schirmer's test, corneal staining test, tear meniscus height and area, and OCT. After surgery, artificial tears help treat dry eye symptoms by corneo-conjunctival wound healing mechanism and increasing tear meniscus stability. |
| Key Words:
Optical coherence tomography;Strabismus;Tear meniscus |
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