Analysis of corneal esthesia in patients undergoing photorefractive keratectomy

Detalhes bibliográficos
Autor(a) principal: Torres Neto,Elmar
Data de Publicação: 2015
Outros Autores: Silva,Lucas Marcel Amaral, Lui,Giovana Arlene Fioravanti, Gomes,Rachel Lopes Rodrigues, Lui-Netto,Adamo
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=S0004-27492015000600363
Resumo: ABSTRACT Purpose: To quantitatively analyze corneal esthesia in patients undergoing photorefractive keratectomy (PRK) surgery. Methods: Forty-five patients selected for PRK in one eye underwent corneal esthesia using a Cochet-Bonnet esthesiometer preoperatively and 30 and 90 days postoperatively. Patients with a refractive diopter error of 4 or greater received intraoperative 0.02% mitomycin C for 20 s. Results: Twenty-four (53.3%) of the 45 eyes received intraoperative 0.02% mitomycin. Decreased sensitivity was observed on postoperative day 30. By postoperative day 90, corneal esthesia had normalized but remained 14.9% lower than preoperative levels. In the mitomycin group, no recovery of corneal esthesia to normal sensitivity levels was observed. The mean esthesiometer level was 39.2 mm on postoperative day 90 (P<0.001). Conclusions: The results of the present study demonstrate recovery of corneal esthesia to normal levels at 90 days postoperatively in patients who did not receive mitomycin C. In patients administered mitomycin C, a 23.59% reduction in the corneal touch threshold was observed compared with preoperative levels indicating a failure of recovery to normal levels.
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spelling Analysis of corneal esthesia in patients undergoing photorefractive keratectomyMitomycinCorneaPhotorefractive keratectomyMyopiaProspective studiesABSTRACT Purpose: To quantitatively analyze corneal esthesia in patients undergoing photorefractive keratectomy (PRK) surgery. Methods: Forty-five patients selected for PRK in one eye underwent corneal esthesia using a Cochet-Bonnet esthesiometer preoperatively and 30 and 90 days postoperatively. Patients with a refractive diopter error of 4 or greater received intraoperative 0.02% mitomycin C for 20 s. Results: Twenty-four (53.3%) of the 45 eyes received intraoperative 0.02% mitomycin. Decreased sensitivity was observed on postoperative day 30. By postoperative day 90, corneal esthesia had normalized but remained 14.9% lower than preoperative levels. In the mitomycin group, no recovery of corneal esthesia to normal sensitivity levels was observed. The mean esthesiometer level was 39.2 mm on postoperative day 90 (P<0.001). Conclusions: The results of the present study demonstrate recovery of corneal esthesia to normal levels at 90 days postoperatively in patients who did not receive mitomycin C. In patients administered mitomycin C, a 23.59% reduction in the corneal touch threshold was observed compared with preoperative levels indicating a failure of recovery to normal levels.Conselho Brasileiro de Oftalmologia2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492015000600363Arquivos Brasileiros de Oftalmologia v.78 n.6 2015reponame:Arquivos brasileiros de oftalmologia (Online)instname:Conselho Brasileiro de Oftalmologia (CBO)instacron:CBO10.5935/0004-2749.20150096info:eu-repo/semantics/openAccessTorres Neto,ElmarSilva,Lucas Marcel AmaralLui,Giovana Arlene FioravantiGomes,Rachel Lopes RodriguesLui-Netto,Adamoeng2015-12-09T00:00:00Zoai:scielo:S0004-27492015000600363Revistahttp://aboonline.org.br/https://old.scielo.br/oai/scielo-oai.phpaboonline@cbo.com.br||abo@cbo.com.br1678-29250004-2749opendoar:2015-12-09T00:00Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO)false
dc.title.none.fl_str_mv Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
title Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
spellingShingle Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
Torres Neto,Elmar
Mitomycin
Cornea
Photorefractive keratectomy
Myopia
Prospective studies
title_short Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
title_full Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
title_fullStr Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
title_full_unstemmed Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
title_sort Analysis of corneal esthesia in patients undergoing photorefractive keratectomy
author Torres Neto,Elmar
author_facet Torres Neto,Elmar
Silva,Lucas Marcel Amaral
Lui,Giovana Arlene Fioravanti
Gomes,Rachel Lopes Rodrigues
Lui-Netto,Adamo
author_role author
author2 Silva,Lucas Marcel Amaral
Lui,Giovana Arlene Fioravanti
Gomes,Rachel Lopes Rodrigues
Lui-Netto,Adamo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Torres Neto,Elmar
Silva,Lucas Marcel Amaral
Lui,Giovana Arlene Fioravanti
Gomes,Rachel Lopes Rodrigues
Lui-Netto,Adamo
dc.subject.por.fl_str_mv Mitomycin
Cornea
Photorefractive keratectomy
Myopia
Prospective studies
topic Mitomycin
Cornea
Photorefractive keratectomy
Myopia
Prospective studies
description ABSTRACT Purpose: To quantitatively analyze corneal esthesia in patients undergoing photorefractive keratectomy (PRK) surgery. Methods: Forty-five patients selected for PRK in one eye underwent corneal esthesia using a Cochet-Bonnet esthesiometer preoperatively and 30 and 90 days postoperatively. Patients with a refractive diopter error of 4 or greater received intraoperative 0.02% mitomycin C for 20 s. Results: Twenty-four (53.3%) of the 45 eyes received intraoperative 0.02% mitomycin. Decreased sensitivity was observed on postoperative day 30. By postoperative day 90, corneal esthesia had normalized but remained 14.9% lower than preoperative levels. In the mitomycin group, no recovery of corneal esthesia to normal sensitivity levels was observed. The mean esthesiometer level was 39.2 mm on postoperative day 90 (P<0.001). Conclusions: The results of the present study demonstrate recovery of corneal esthesia to normal levels at 90 days postoperatively in patients who did not receive mitomycin C. In patients administered mitomycin C, a 23.59% reduction in the corneal touch threshold was observed compared with preoperative levels indicating a failure of recovery to normal levels.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492015000600363
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492015000600363
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0004-2749.20150096
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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.6 2015
reponame:Arquivos brasileiros de oftalmologia (Online)
instname:Conselho Brasileiro de Oftalmologia (CBO)
instacron:CBO
instname_str Conselho Brasileiro de Oftalmologia (CBO)
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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)
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