A comparison study of corneal topographic changes following 20-, 23-, and 25-G pars plana vitrectomy
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
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. |
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Arquivos brasileiros de oftalmologia (Online) |
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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 |
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1754209028618059776 |