Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIK

Abstract Background To evaluate corneal epithelial thickness change during medical treatment for eyes with myopic regression after femtosecond laser-assisted in situ keratomileusis (FS-LASIK). Methods This study included 84 eyes of 54 subjects diagnosed with myopic regression after FS-LASIK and trea...

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Main Authors: Ik-Hee Ryu, Wook Kyum Kim, Myoung Sik Nam, Jin Kook Kim, Sun Woong Kim
Format: Article
Language:English
Published: BMC 2020-07-01
Series:BMC Ophthalmology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12886-020-01570-2
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author Ik-Hee Ryu
Wook Kyum Kim
Myoung Sik Nam
Jin Kook Kim
Sun Woong Kim
author_facet Ik-Hee Ryu
Wook Kyum Kim
Myoung Sik Nam
Jin Kook Kim
Sun Woong Kim
author_sort Ik-Hee Ryu
collection DOAJ
description Abstract Background To evaluate corneal epithelial thickness change during medical treatment for eyes with myopic regression after femtosecond laser-assisted in situ keratomileusis (FS-LASIK). Methods This study included 84 eyes of 54 subjects diagnosed with myopic regression after FS-LASIK and treated using topical steroid and anti-glaucoma drugs. Corneal epithelial thickness was measured using Fourier-domain optical coherence tomography before and after treatment. Subjects were divided into three groups based on their corneal epithelial thickness at the time of myopic regression and regression analyses were used to investigate the association between corneal epithelial thickness, visual acuity, and refraction. Logistic regression and receiver operating characteristic (ROC) curve analysis was performed to determine whether corneal epithelial thickness could predict the success of treatment, improvements of ≥ two lines in uncorrected distance visual acuity and ≥ 0.5 diopter in refraction or K. Results Corneal epithelial thickness decreased with greater change in the center as myopic regression subsided during medical treatment. Subgroup with the thickest epithelium (≥ 62 μm) showed a higher success rate and greater changes in refraction and vision. Reduced magnitude of corneal epithelial thickness showed significant correlations with changes of K and refractive error (all P < 0.001). Corneal epithelial thickness was a significant factor for the success of treatment and ROC curve showed that corneal epithelial thickness > 60.50 μm had 81.5% sensitivity and 84.2% specificity for the success of medical treatment. Conclusion Corneal epithelial thickness decreases proportionally with the magnitude of improvement of myopic regression during treatment with steroid and anti-glaucoma drugs in post-LASIK eyes with myopic regression.
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spelling doaj.art-d5b05978596642c9b1c234679f5927a32022-12-21T18:58:00ZengBMCBMC Ophthalmology1471-24152020-07-0120111010.1186/s12886-020-01570-2Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIKIk-Hee Ryu0Wook Kyum Kim1Myoung Sik Nam2Jin Kook Kim3Sun Woong Kim4B & VIIT Eye CenterB & VIIT Eye CenterDepartment of Ophthalmology, Yonsei University Wonju College of MedicineB & VIIT Eye CenterDepartment of Ophthalmology, Yonsei University Wonju College of MedicineAbstract Background To evaluate corneal epithelial thickness change during medical treatment for eyes with myopic regression after femtosecond laser-assisted in situ keratomileusis (FS-LASIK). Methods This study included 84 eyes of 54 subjects diagnosed with myopic regression after FS-LASIK and treated using topical steroid and anti-glaucoma drugs. Corneal epithelial thickness was measured using Fourier-domain optical coherence tomography before and after treatment. Subjects were divided into three groups based on their corneal epithelial thickness at the time of myopic regression and regression analyses were used to investigate the association between corneal epithelial thickness, visual acuity, and refraction. Logistic regression and receiver operating characteristic (ROC) curve analysis was performed to determine whether corneal epithelial thickness could predict the success of treatment, improvements of ≥ two lines in uncorrected distance visual acuity and ≥ 0.5 diopter in refraction or K. Results Corneal epithelial thickness decreased with greater change in the center as myopic regression subsided during medical treatment. Subgroup with the thickest epithelium (≥ 62 μm) showed a higher success rate and greater changes in refraction and vision. Reduced magnitude of corneal epithelial thickness showed significant correlations with changes of K and refractive error (all P < 0.001). Corneal epithelial thickness was a significant factor for the success of treatment and ROC curve showed that corneal epithelial thickness > 60.50 μm had 81.5% sensitivity and 84.2% specificity for the success of medical treatment. Conclusion Corneal epithelial thickness decreases proportionally with the magnitude of improvement of myopic regression during treatment with steroid and anti-glaucoma drugs in post-LASIK eyes with myopic regression.http://link.springer.com/article/10.1186/s12886-020-01570-2Corneal thicknessCorneal epithelial thicknessFS LASIKMyopic regression
spellingShingle Ik-Hee Ryu
Wook Kyum Kim
Myoung Sik Nam
Jin Kook Kim
Sun Woong Kim
Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIK
BMC Ophthalmology
Corneal thickness
Corneal epithelial thickness
FS LASIK
Myopic regression
title Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIK
title_full Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIK
title_fullStr Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIK
title_full_unstemmed Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIK
title_short Reduction of corneal epithelial thickness during medical treatment for myopic regression following FS-LASIK
title_sort reduction of corneal epithelial thickness during medical treatment for myopic regression following fs lasik
topic Corneal thickness
Corneal epithelial thickness
FS LASIK
Myopic regression
url http://link.springer.com/article/10.1186/s12886-020-01570-2
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