Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae

Detalhes bibliográficos
Autor(a) principal: Victor,Gustavo
Data de Publicação: 2014
Outros Autores: Nosé,Walton, Faria e Sousa,Sidney Julio de, Pineda,Roberto, Alves,Milton Ruiz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Oftalmologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-72802014000200071
Resumo: Purpose: To evaluate the efficacy and reliability of a low-energy femtosecond laser with a high repetition rate for construction of deep anterior donor corneal lamellae. Methods: This was a prospective laboratory investigation. Twenty-five human corneal buttons were femtosecond laser cut to create thick anterior lamellae (diameter, 10mm; thickness, 500µm). The laser cuts were made using an LDV® femtosecond laser in a Ziemer® anterior chamber. To obtain a better edge, the lamellae were trephined with an 8mm trephine (Katena®). The central corneal thickness and the anterior lamellae were measured using a Mitutoyo® thickness gauge with an accuracy of 0.001mm. Results: The central thickness of the 25 corneas ranged from 500 to 705µm (mean, 584 ± 51µm). The thickness of the anterior lamellae ranged from 420 to 480µm (mean, 455 ± 12.7µm). The anterior lamellae diameters were 7.90 ± 0.1mm, and all laser cuts were round. The lamellar interfaces appeared regular by surgical microscopy. There were no cases of inter-lamellar adhesion. Conclusion: The LDV® femtosecond laser appears to be a safe and reliable instrument for cutting deep anterior lamellae from donor corneoscleral buttons. Minimal variation in donor lamellar depth with the laser will be useful for creating donor corneal tissue for deeper anterior lamellar keratoplasty or endothelial keratoplasty surgery or both from a single donor cornea.
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spelling Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellaeCorneaCorneal transplantationCorneal pachymetryEndotheliumLasers Purpose: To evaluate the efficacy and reliability of a low-energy femtosecond laser with a high repetition rate for construction of deep anterior donor corneal lamellae. Methods: This was a prospective laboratory investigation. Twenty-five human corneal buttons were femtosecond laser cut to create thick anterior lamellae (diameter, 10mm; thickness, 500µm). The laser cuts were made using an LDV® femtosecond laser in a Ziemer® anterior chamber. To obtain a better edge, the lamellae were trephined with an 8mm trephine (Katena®). The central corneal thickness and the anterior lamellae were measured using a Mitutoyo® thickness gauge with an accuracy of 0.001mm. Results: The central thickness of the 25 corneas ranged from 500 to 705µm (mean, 584 ± 51µm). The thickness of the anterior lamellae ranged from 420 to 480µm (mean, 455 ± 12.7µm). The anterior lamellae diameters were 7.90 ± 0.1mm, and all laser cuts were round. The lamellar interfaces appeared regular by surgical microscopy. There were no cases of inter-lamellar adhesion. Conclusion: The LDV® femtosecond laser appears to be a safe and reliable instrument for cutting deep anterior lamellae from donor corneoscleral buttons. Minimal variation in donor lamellar depth with the laser will be useful for creating donor corneal tissue for deeper anterior lamellar keratoplasty or endothelial keratoplasty surgery or both from a single donor cornea. Sociedade Brasileira de Oftalmologia2014-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-72802014000200071Revista Brasileira de Oftalmologia v.73 n.2 2014reponame:Revista Brasileira de Oftalmologia (Online)instname:Sociedade Brasileira de Oftalmologia (SBO)instacron:SBO10.5935/0034-7280.20140017info:eu-repo/semantics/openAccessVictor,GustavoNosé,WaltonFaria e Sousa,Sidney Julio dePineda,RobertoAlves,Milton Ruizeng2014-12-16T00:00:00Zoai:scielo:S0034-72802014000200071Revistahttps://rbo.emnuvens.com.br/rbo/indexhttps://old.scielo.br/oai/scielo-oai.phpsob@sboportal.org.br||rbo@sboportal.org.br1982-85510034-7280opendoar:2014-12-16T00:00Revista Brasileira de Oftalmologia (Online) - Sociedade Brasileira de Oftalmologia (SBO)false
dc.title.none.fl_str_mv Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
title Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
spellingShingle Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
Victor,Gustavo
Cornea
Corneal transplantation
Corneal pachymetry
Endothelium
Lasers
title_short Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
title_full Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
title_fullStr Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
title_full_unstemmed Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
title_sort Analysis of low-energy and high-frequency femtosecond laser for the construction of deep anterior donor corneal lamellae
author Victor,Gustavo
author_facet Victor,Gustavo
Nosé,Walton
Faria e Sousa,Sidney Julio de
Pineda,Roberto
Alves,Milton Ruiz
author_role author
author2 Nosé,Walton
Faria e Sousa,Sidney Julio de
Pineda,Roberto
Alves,Milton Ruiz
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Victor,Gustavo
Nosé,Walton
Faria e Sousa,Sidney Julio de
Pineda,Roberto
Alves,Milton Ruiz
dc.subject.por.fl_str_mv Cornea
Corneal transplantation
Corneal pachymetry
Endothelium
Lasers
topic Cornea
Corneal transplantation
Corneal pachymetry
Endothelium
Lasers
description Purpose: To evaluate the efficacy and reliability of a low-energy femtosecond laser with a high repetition rate for construction of deep anterior donor corneal lamellae. Methods: This was a prospective laboratory investigation. Twenty-five human corneal buttons were femtosecond laser cut to create thick anterior lamellae (diameter, 10mm; thickness, 500µm). The laser cuts were made using an LDV® femtosecond laser in a Ziemer® anterior chamber. To obtain a better edge, the lamellae were trephined with an 8mm trephine (Katena®). The central corneal thickness and the anterior lamellae were measured using a Mitutoyo® thickness gauge with an accuracy of 0.001mm. Results: The central thickness of the 25 corneas ranged from 500 to 705µm (mean, 584 ± 51µm). The thickness of the anterior lamellae ranged from 420 to 480µm (mean, 455 ± 12.7µm). The anterior lamellae diameters were 7.90 ± 0.1mm, and all laser cuts were round. The lamellar interfaces appeared regular by surgical microscopy. There were no cases of inter-lamellar adhesion. Conclusion: The LDV® femtosecond laser appears to be a safe and reliable instrument for cutting deep anterior lamellae from donor corneoscleral buttons. Minimal variation in donor lamellar depth with the laser will be useful for creating donor corneal tissue for deeper anterior lamellar keratoplasty or endothelial keratoplasty surgery or both from a single donor cornea.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-72802014000200071
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-72802014000200071
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0034-7280.20140017
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Oftalmologia
publisher.none.fl_str_mv Sociedade Brasileira de Oftalmologia
dc.source.none.fl_str_mv Revista Brasileira de Oftalmologia v.73 n.2 2014
reponame:Revista Brasileira de Oftalmologia (Online)
instname:Sociedade Brasileira de Oftalmologia (SBO)
instacron:SBO
instname_str Sociedade Brasileira de Oftalmologia (SBO)
instacron_str SBO
institution SBO
reponame_str Revista Brasileira de Oftalmologia (Online)
collection Revista Brasileira de Oftalmologia (Online)
repository.name.fl_str_mv Revista Brasileira de Oftalmologia (Online) - Sociedade Brasileira de Oftalmologia (SBO)
repository.mail.fl_str_mv sob@sboportal.org.br||rbo@sboportal.org.br
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