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Changes in posterior corneal elevations after combined transepithelial photorefractive keratectomy and accelerated corneal collagen cross-linking: retrospective, comparative observational case series

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dc.contributor.author김응권-
dc.contributor.author김태임-
dc.contributor.author서경률-
dc.date.accessioned2017-10-26T07:26:44Z-
dc.date.available2017-10-26T07:26:44Z-
dc.date.issued2016-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/152038-
dc.description.abstractBackground : To compare the changes in anterior and posterior corneal elevations after combined transepithelial photorefractive keratectomy (PRK) and accelerated corneal collagen cross-linking (CXL) and after PRK. Methods : Medical records of 82 eyes of 44 patients undergoing either combined transepithelial PRK and CXL (PRK-CXL group) or transepithelial PRK (PRK group) were examined retrospectively. Changes in anterior and posterior corneal elevations were calculated by fitting an 8.0-mm diameter best-fit sphere and best-fit toric ellipsoid (BFTE) to the corneal shape with a fixed eccentricity of 0.4 using Scheimpflug tomography (Pentacam HR; Oculus Optikger?te GmbH, Wetzlar, Germany) preoperatively and 6 months postoperatively. Results : In anterior corneal elevation, both groups demonstrated a similar trend of a forward displacement of peripheral anterior corneal surface and a backward displacement of central anterior corneal surface. In posterior corneal elevation, a forward displacement of peripheral posterior corneal surface was induced in both groups, along with a backward displacement of central posterior corneal surface, regardless of the calculation method. The magnitudes of displacement of peripheral and central posterior corneal surfaces were significantly smaller in the PRK-CXL group than in the PRK group. Moreover, the PRK-CXL group showed a backward displacement of posterior corneal surface at maximum corneal elevations when the BFTE was used as the reference surface. Conclusions : Transepithelial PRK combined with prophylactic CXL significantly reduced the magnitudes of displacement of peripheral and central posterior corneal surfaces, with the radius of the BFTE was set to 8.0-mm on the Scheimpflug tomography system.-
dc.description.statementOfResponsibilityopen-
dc.publisherBioMed Central-
dc.relation.isPartOfBMC OPHTHALMOLOGY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAdult-
dc.subject.MESHCollagen/metabolism-
dc.subject.MESHCombined Modality Therapy-
dc.subject.MESHCornea/pathology*-
dc.subject.MESHCorneal Stroma/metabolism-
dc.subject.MESHCorneal Topography-
dc.subject.MESHCross-Linking Reagents/therapeutic use*-
dc.subject.MESHEpithelium, Corneal/surgery-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHMale-
dc.subject.MESHMyopia/surgery*-
dc.subject.MESHPhotochemotherapy-
dc.subject.MESHPhotorefractive Keratectomy*/adverse effects-
dc.subject.MESHPhotorefractive Keratectomy*/methods-
dc.subject.MESHPhotosensitizing Agents/therapeutic use-
dc.subject.MESHPostoperative Complications*-
dc.subject.MESHRetrospective Studies-
dc.subject.MESHTomography, X-Ray Computed-
dc.subject.MESHYoung Adult-
dc.titleChanges in posterior corneal elevations after combined transepithelial photorefractive keratectomy and accelerated corneal collagen cross-linking: retrospective, comparative observational case series-
dc.typeArticle-
dc.publisher.locationEngland-
dc.contributor.collegeCollege of Medicine-
dc.contributor.departmentDept. of Ophthalmology-
dc.contributor.googleauthorHun Lee-
dc.contributor.googleauthorDavid Sung Yong Kang-
dc.contributor.googleauthorByoung Jin Ha-
dc.contributor.googleauthorJin Young Choi-
dc.contributor.googleauthorEung Kweon Kim-
dc.contributor.googleauthorKyoung Yul Seo-
dc.contributor.googleauthorTae-im Kim-
dc.identifier.doi10.1186/s12886-016-0320-3-
dc.contributor.localIdA01080-
dc.contributor.localIdA01870-
dc.contributor.localIdA00831-
dc.relation.journalcodeJ00370-
dc.identifier.eissn1471-2415-
dc.relation.journalsince2001~-
dc.subject.keywordAccelerated corneal collagen cross-linking-
dc.subject.keywordBest-fit toric ellipsoid-
dc.subject.keywordPosterior corneal elevations-
dc.subject.keywordScheimpflug tomography-
dc.subject.keywordTransepithelial photorefractive keratectomy-
dc.contributor.alternativeNameKim, Eung Kweon-
dc.contributor.alternativeNameKim, Tae Im-
dc.contributor.alternativeNameSeo, Kyuong Yul-
dc.contributor.affiliatedAuthorKim, Tae Im-
dc.contributor.affiliatedAuthorSeo, Kyuong Yul-
dc.contributor.affiliatedAuthorKim, Eung Kweon-
dc.citation.volume16-
dc.citation.startPage139-
dc.identifier.bibliographicCitationBMC OPHTHALMOLOGY, Vol.16 : 139, 2016-
dc.date.modified2017-10-24-
dc.identifier.rimsid46818-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers

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