A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy

Detalhes bibliográficos
Autor(a) principal: Grandinetti,Alexandre Achille
Data de Publicação: 2015
Outros Autores: Kniggendorf,Vinicius, Moreira,Luciane Bugmann, Moreira Junior,Carlos Augusto, Moreira,Ana Tereza Ramos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivos brasileiros de oftalmologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492015000550075
Resumo: ABSTRACTPurpose:To evaluate and compare corneal topographic changes following pars plana vitrectomy with the 23-gauge (G) and 25-G transconjuntival sutureless vitrectomy system as well as the standard 20-G vitrectomy system.Methods:We prospectively evaluated corneal topographic changes in 45 eyes of 45 patients divided into three groups according to vitrectomy system used (20-, 23-, and 25-G). All patients underwent computer-assisted videokeratography using an EyeSys System 3000 topographer preoperatively and at one week, one month, and three months postoperatively.Results:In the 20-G vitrectomy group, we found statistically significant postoperative changes in corneal curvature parameters with an average steepening of 0.98 ± 0.18 D (P<0.001) and 0.93 ± 0.21 D (P<0.001) at one week and one month, respectively. No statistically significant difference was observed at the three-month follow-up visit. In the 23- and 25-G groups, no statistically significant changes in corneal curvature parameters were observed at any postoperative follow-up visit.Conclusion:Twenty-three-gauge and 25-gauge transconjunctival sutureless vitrectomy did not induce topographic corneal changes following surgery, whereas 20-G vitrectomy was found to induce transient topographic corneal changes that had returned to preoperative levels at three months postoperatively.
id CBO-2_9ce201fdda8a902d444d47d101028a09
oai_identifier_str oai:scielo:S0004-27492015000550075
network_acronym_str CBO-2
network_name_str Arquivos brasileiros de oftalmologia (Online)
repository_id_str
spelling A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomyRetinaVitrectomyCorneaCorneal topographyAstigmatismABSTRACTPurpose:To evaluate and compare corneal topographic changes following pars plana vitrectomy with the 23-gauge (G) and 25-G transconjuntival sutureless vitrectomy system as well as the standard 20-G vitrectomy system.Methods:We prospectively evaluated corneal topographic changes in 45 eyes of 45 patients divided into three groups according to vitrectomy system used (20-, 23-, and 25-G). All patients underwent computer-assisted videokeratography using an EyeSys System 3000 topographer preoperatively and at one week, one month, and three months postoperatively.Results:In the 20-G vitrectomy group, we found statistically significant postoperative changes in corneal curvature parameters with an average steepening of 0.98 ± 0.18 D (P<0.001) and 0.93 ± 0.21 D (P<0.001) at one week and one month, respectively. No statistically significant difference was observed at the three-month follow-up visit. In the 23- and 25-G groups, no statistically significant changes in corneal curvature parameters were observed at any postoperative follow-up visit.Conclusion:Twenty-three-gauge and 25-gauge transconjunctival sutureless vitrectomy did not induce topographic corneal changes following surgery, whereas 20-G vitrectomy was found to induce transient topographic corneal changes that had returned to preoperative levels at three months postoperatively.Conselho Brasileiro de Oftalmologia2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492015000550075Arquivos Brasileiros de Oftalmologia v.78 n.5 2015reponame:Arquivos brasileiros de oftalmologia (Online)instname:Conselho Brasileiro de Oftalmologia (CBO)instacron:CBO10.5935/0004-2749.20150075info:eu-repo/semantics/openAccessGrandinetti,Alexandre AchilleKniggendorf,ViniciusMoreira,Luciane BugmannMoreira Junior,Carlos AugustoMoreira,Ana Tereza Ramoseng2015-10-02T00:00:00Zoai:scielo:S0004-27492015000550075Revistahttp://aboonline.org.br/https://old.scielo.br/oai/scielo-oai.phpaboonline@cbo.com.br||abo@cbo.com.br1678-29250004-2749opendoar:2015-10-02T00:00Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO)false
dc.title.none.fl_str_mv A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
title A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
spellingShingle A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
Grandinetti,Alexandre Achille
Retina
Vitrectomy
Cornea
Corneal topography
Astigmatism
title_short A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
title_full A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
title_fullStr A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
title_full_unstemmed A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
title_sort A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
author Grandinetti,Alexandre Achille
author_facet Grandinetti,Alexandre Achille
Kniggendorf,Vinicius
Moreira,Luciane Bugmann
Moreira Junior,Carlos Augusto
Moreira,Ana Tereza Ramos
author_role author
author2 Kniggendorf,Vinicius
Moreira,Luciane Bugmann
Moreira Junior,Carlos Augusto
Moreira,Ana Tereza Ramos
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Grandinetti,Alexandre Achille
Kniggendorf,Vinicius
Moreira,Luciane Bugmann
Moreira Junior,Carlos Augusto
Moreira,Ana Tereza Ramos
dc.subject.por.fl_str_mv Retina
Vitrectomy
Cornea
Corneal topography
Astigmatism
topic Retina
Vitrectomy
Cornea
Corneal topography
Astigmatism
description ABSTRACTPurpose:To evaluate and compare corneal topographic changes following pars plana vitrectomy with the 23-gauge (G) and 25-G transconjuntival sutureless vitrectomy system as well as the standard 20-G vitrectomy system.Methods:We prospectively evaluated corneal topographic changes in 45 eyes of 45 patients divided into three groups according to vitrectomy system used (20-, 23-, and 25-G). All patients underwent computer-assisted videokeratography using an EyeSys System 3000 topographer preoperatively and at one week, one month, and three months postoperatively.Results:In the 20-G vitrectomy group, we found statistically significant postoperative changes in corneal curvature parameters with an average steepening of 0.98 ± 0.18 D (P<0.001) and 0.93 ± 0.21 D (P<0.001) at one week and one month, respectively. No statistically significant difference was observed at the three-month follow-up visit. In the 23- and 25-G groups, no statistically significant changes in corneal curvature parameters were observed at any postoperative follow-up visit.Conclusion:Twenty-three-gauge and 25-gauge transconjunctival sutureless vitrectomy did not induce topographic corneal changes following surgery, whereas 20-G vitrectomy was found to induce transient topographic corneal changes that had returned to preoperative levels at three months postoperatively.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-01
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=S0004-27492015000550075
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492015000550075
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0004-2749.20150075
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 Conselho Brasileiro de Oftalmologia
publisher.none.fl_str_mv Conselho Brasileiro de Oftalmologia
dc.source.none.fl_str_mv Arquivos Brasileiros de Oftalmologia v.78 n.5 2015
reponame:Arquivos brasileiros de oftalmologia (Online)
instname:Conselho Brasileiro de Oftalmologia (CBO)
instacron:CBO
instname_str Conselho Brasileiro de Oftalmologia (CBO)
instacron_str CBO
institution CBO
reponame_str Arquivos brasileiros de oftalmologia (Online)
collection Arquivos brasileiros de oftalmologia (Online)
repository.name.fl_str_mv Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO)
repository.mail.fl_str_mv aboonline@cbo.com.br||abo@cbo.com.br
_version_ 1754209028618059776