| Changes in corneal thickness and curvature after different excimer laser photorefractive procedures and their impact on intraocular pressure measurements. | |
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MedLine Citation:
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PMID: 16003513 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Excimer laser refractive surgery alters the shape and thickness of the cornea by removing central corneal tissue with submicrometer precision. The aim of the study was to analyze the changes in central corneal thickness (CCT) and curvature before and after different excimer laser photorefractive procedures and their possible impact on intraocular pressure (IOP) estimations with Goldmann applanation tonometry. METHODS: Data on CCT, corneal curvature and IOP readings with Goldmann applanation tonometry before and after excimer laser photorefractive surgery were analyzed retrospectively. The data was further analyzed separately in two subgroups; the photorefractive keratectomy /laser-assisted subepithelial keratomileusis (PRK/LASEK) group and the laser in situ keratomileusis (LASIK) group. RESULTS: The overall post-operative IOP readings were significantly lower than pre-operative values. There was a significant difference in the lowering of the IOP readings between the two subgroups: LASIK caused a lower IOP reading than PRK/LASEK. CONCLUSION: The change in corneal thickness and curvature affects the estimation of IOP with Goldmann applanation tonometry after excimer laser photorefractive surgery. The amount of reduction in IOP reading might be influenced by the specific laser surgical procedure. This is of clinical importance in the evaluation of any future glaucoma in the increasing number of patients who undergo photorefractive laser surgery. |
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Authors:
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Helena Svedberg; Enping Chen; Helene Hamberg-Nyström |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2005-07-08 |
Journal Detail:
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Title: Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie Volume: 243 ISSN: 0721-832X ISO Abbreviation: Graefes Arch. Clin. Exp. Ophthalmol. Publication Date: 2005 Dec |
Date Detail:
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Created Date: 2005-11-29 Completed Date: 2006-05-04 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8205248 Medline TA: Graefes Arch Clin Exp Ophthalmol Country: Germany |
Other Details:
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Languages: eng Pagination: 1218-20 Citation Subset: IM |
Affiliation:
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St Erik's Eye Hospital, Karolinska Institutet, Stockholm, Sweden. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cornea / pathology*, surgery Corneal Surgery, Laser* Female Follow-Up Studies Humans Intraocular Pressure / physiology* Male Refractive Errors / pathology, physiopathology Refractive Surgical Procedures* Retrospective Studies Tonometry, Ocular / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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