Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/20719 |
Resumo: | PURPOSE: To monitor changes in corneal structure and level of inflammatory mediators in tears of myopic patients following orthokeratology (OK) and laser in situ keratomileusis (LASIK). METHODS: Sixty-two myopic subjects were analyzed in this prospective study. Thirty-two had worn Paragon CRT contact lenses and 30 underwent standard LASIK. Thirty-two control subjects were also recruited. Pachometry and corneal topography were performed 12 months after both interventions. Tears were collected and assayed using ELISA for IL-6, IL-8, matrix metalloproteinase-9 (MMP-9), and epidermal growth factor (EGF). RESULTS: Corneal power decreased in the central area and increased in the paracentral area. Simultaneously, there was a central corneal thinning with mid-peripheral thickening for OK. No changes were observed for LASIK. In comparison with controls, IL-6, IL-8, MMP-9, and EGF levels were increased significantly for OK (P < 0.01). Only MMP-9 (P < 0.01) and EGF (P < 0.01) were increased for LASIK. Pro-inflammatory response was found to be associated with the degree of myopia in the OK group. The MMP-9 and EGF upregulation was linked to the presence of iron deposition in both groups, whereas increased levels of EGF were connected with the presence of myopic regression after LASIK. CONCLUSIONS: Both interventions involved important tissue reshaping. The physical presence of a reverse geometry contact lens caused certain markers to change significantly in comparison with no lens wear or LASIK in the long-term response. MMP-9 was significantly higher in tears of subjects presenting iron deposition after OK or LASIK, and EGF levels seemed to play an important role in postoperative refractive outcomes after LASIK. |
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Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIKInflammatory mediatorsOrthokeratologyScience & TechnologyPURPOSE: To monitor changes in corneal structure and level of inflammatory mediators in tears of myopic patients following orthokeratology (OK) and laser in situ keratomileusis (LASIK). METHODS: Sixty-two myopic subjects were analyzed in this prospective study. Thirty-two had worn Paragon CRT contact lenses and 30 underwent standard LASIK. Thirty-two control subjects were also recruited. Pachometry and corneal topography were performed 12 months after both interventions. Tears were collected and assayed using ELISA for IL-6, IL-8, matrix metalloproteinase-9 (MMP-9), and epidermal growth factor (EGF). RESULTS: Corneal power decreased in the central area and increased in the paracentral area. Simultaneously, there was a central corneal thinning with mid-peripheral thickening for OK. No changes were observed for LASIK. In comparison with controls, IL-6, IL-8, MMP-9, and EGF levels were increased significantly for OK (P < 0.01). Only MMP-9 (P < 0.01) and EGF (P < 0.01) were increased for LASIK. Pro-inflammatory response was found to be associated with the degree of myopia in the OK group. The MMP-9 and EGF upregulation was linked to the presence of iron deposition in both groups, whereas increased levels of EGF were connected with the presence of myopic regression after LASIK. CONCLUSIONS: Both interventions involved important tissue reshaping. The physical presence of a reverse geometry contact lens caused certain markers to change significantly in comparison with no lens wear or LASIK in the long-term response. MMP-9 was significantly higher in tears of subjects presenting iron deposition after OK or LASIK, and EGF levels seemed to play an important role in postoperative refractive outcomes after LASIK.Supported by National Grant PI081380 from Instituto de Salud Carlos III, Spain, awarded to the Ocular Surface and Contact Lens Research Group GI-1750.Association for Research in Vision and Ophthalmology (ARVO)Universidade do MinhoGonzález-Pérez, JavierVilla-Collar, CésarGonzález-Méijome, José ManuelGarcia-Porta, NeryParafita, Manuel A.20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/20719engGonzález-Pérez J, Villa-Collar C, González-Méijome JM, Porta NG, Parafita MÁ. Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK. Invest Ophthalmol Vis Sci. 2012 Aug 7;53(9):5301-11. doi: 10.1167/iovs.11-9155.0146-040410.1167/iovs.11-915522789928http://www.iovs.org/cgi/pmidlookup?view=long&pmid=22789928info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:20:40Zoai:repositorium.sdum.uminho.pt:1822/20719Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:13:51.540083Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK |
title |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK |
spellingShingle |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK González-Pérez, Javier Inflammatory mediators Orthokeratology Science & Technology |
title_short |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK |
title_full |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK |
title_fullStr |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK |
title_full_unstemmed |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK |
title_sort |
Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK |
author |
González-Pérez, Javier |
author_facet |
González-Pérez, Javier Villa-Collar, César González-Méijome, José Manuel Garcia-Porta, Nery Parafita, Manuel A. |
author_role |
author |
author2 |
Villa-Collar, César González-Méijome, José Manuel Garcia-Porta, Nery Parafita, Manuel A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
González-Pérez, Javier Villa-Collar, César González-Méijome, José Manuel Garcia-Porta, Nery Parafita, Manuel A. |
dc.subject.por.fl_str_mv |
Inflammatory mediators Orthokeratology Science & Technology |
topic |
Inflammatory mediators Orthokeratology Science & Technology |
description |
PURPOSE: To monitor changes in corneal structure and level of inflammatory mediators in tears of myopic patients following orthokeratology (OK) and laser in situ keratomileusis (LASIK). METHODS: Sixty-two myopic subjects were analyzed in this prospective study. Thirty-two had worn Paragon CRT contact lenses and 30 underwent standard LASIK. Thirty-two control subjects were also recruited. Pachometry and corneal topography were performed 12 months after both interventions. Tears were collected and assayed using ELISA for IL-6, IL-8, matrix metalloproteinase-9 (MMP-9), and epidermal growth factor (EGF). RESULTS: Corneal power decreased in the central area and increased in the paracentral area. Simultaneously, there was a central corneal thinning with mid-peripheral thickening for OK. No changes were observed for LASIK. In comparison with controls, IL-6, IL-8, MMP-9, and EGF levels were increased significantly for OK (P < 0.01). Only MMP-9 (P < 0.01) and EGF (P < 0.01) were increased for LASIK. Pro-inflammatory response was found to be associated with the degree of myopia in the OK group. The MMP-9 and EGF upregulation was linked to the presence of iron deposition in both groups, whereas increased levels of EGF were connected with the presence of myopic regression after LASIK. CONCLUSIONS: Both interventions involved important tissue reshaping. The physical presence of a reverse geometry contact lens caused certain markers to change significantly in comparison with no lens wear or LASIK in the long-term response. MMP-9 was significantly higher in tears of subjects presenting iron deposition after OK or LASIK, and EGF levels seemed to play an important role in postoperative refractive outcomes after LASIK. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2012-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/20719 |
url |
http://hdl.handle.net/1822/20719 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
González-Pérez J, Villa-Collar C, González-Méijome JM, Porta NG, Parafita MÁ. Long-term changes in corneal structure and tear inflammatory mediators after orthokeratology and LASIK. Invest Ophthalmol Vis Sci. 2012 Aug 7;53(9):5301-11. doi: 10.1167/iovs.11-9155. 0146-0404 10.1167/iovs.11-9155 22789928 http://www.iovs.org/cgi/pmidlookup?view=long&pmid=22789928 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Association for Research in Vision and Ophthalmology (ARVO) |
publisher.none.fl_str_mv |
Association for Research in Vision and Ophthalmology (ARVO) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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