Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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=S0004-27492018000300202 |
Resumo: | ABSTRACT Purpose: To evaluate the outcomes of the first 30 cataract surgeries performed with a new disposable, injector-free, small-pupil expansion device. Methods: This consecutive case series included 30 eyes from 29 patients who underwent cataract surgery using a new disposable small-pupil expansion device called the Canabrava Ring (AJL Ophthalmic S.A, Spain). It is the first iris expansion ring produced with indents that do not align with each other in the superior and inferior regions, resulting in a small vertical length (0.4 mm) that minimizes the risk of endothelial contact. All eyes had poorly dilated pupils of less than 5 mm preoperatively. Fifteen eyes had significant infective or traumatic pathologies preoperatively. Vertical and horizontal pupil diameters were evaluated preoperatively, intraoperatively, and 1 month postoperatively. Results: The mean patient age was 64 ± 11.8 (standard deviation) years. The Canabrava Ring remained engaged throughout all surgeries, except one. All pupils were intraoperatively expanded to a diameter of 6.3 mm. Although preexisting pathology on the innervation of the pupils, the mean pupil diameter returns to a close preoperative size after 1 month surgery. The mean pupil diameters postoperatively and preoperatively were 4.41 and 3.77 mm, respectively (p<0.05). Postoperative complications occurred in eight eyes (one toxoplasmosis reactivation, one retinal detachment, one posterior capsule rupture, one posterior capsule opacification, and four posterior synechiae). These complications occurred in eyes with preexisting traumatic or infective pathologies or synechiae. Conclusion: The Canabrava Ring is effective for expanding and maintaining expansion of small pupils in cataract surgery. The increase in postoperative pupil diameter is clinically diminutive and can most likely be attributed to preexisting pathologies affecting pupil innervation. Further large-scale studies are required to support the present findings. |
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Arquivos brasileiros de oftalmologia (Online) |
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Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 casesCataract extractionMiosisPupils/physiologyProstheses and implantsTissue expansion/instrumentationABSTRACT Purpose: To evaluate the outcomes of the first 30 cataract surgeries performed with a new disposable, injector-free, small-pupil expansion device. Methods: This consecutive case series included 30 eyes from 29 patients who underwent cataract surgery using a new disposable small-pupil expansion device called the Canabrava Ring (AJL Ophthalmic S.A, Spain). It is the first iris expansion ring produced with indents that do not align with each other in the superior and inferior regions, resulting in a small vertical length (0.4 mm) that minimizes the risk of endothelial contact. All eyes had poorly dilated pupils of less than 5 mm preoperatively. Fifteen eyes had significant infective or traumatic pathologies preoperatively. Vertical and horizontal pupil diameters were evaluated preoperatively, intraoperatively, and 1 month postoperatively. Results: The mean patient age was 64 ± 11.8 (standard deviation) years. The Canabrava Ring remained engaged throughout all surgeries, except one. All pupils were intraoperatively expanded to a diameter of 6.3 mm. Although preexisting pathology on the innervation of the pupils, the mean pupil diameter returns to a close preoperative size after 1 month surgery. The mean pupil diameters postoperatively and preoperatively were 4.41 and 3.77 mm, respectively (p<0.05). Postoperative complications occurred in eight eyes (one toxoplasmosis reactivation, one retinal detachment, one posterior capsule rupture, one posterior capsule opacification, and four posterior synechiae). These complications occurred in eyes with preexisting traumatic or infective pathologies or synechiae. Conclusion: The Canabrava Ring is effective for expanding and maintaining expansion of small pupils in cataract surgery. The increase in postoperative pupil diameter is clinically diminutive and can most likely be attributed to preexisting pathologies affecting pupil innervation. Further large-scale studies are required to support the present findings.Conselho Brasileiro de Oftalmologia2018-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492018000300202Arquivos Brasileiros de Oftalmologia v.81 n.3 2018reponame:Arquivos brasileiros de oftalmologia (Online)instname:Conselho Brasileiro de Oftalmologia (CBO)instacron:CBO10.5935/0004-2749.20180042info:eu-repo/semantics/openAccessCanabrava,SérgioRezende,Pedro HenriquesEliazar,Glauber CoutinhoFigueiredo,Sophia Barbosa deResende,Arthur FernandesBatista,Wagner DuarteDiniz-Filho,Albertoeng2018-06-13T00:00:00Zoai:scielo:S0004-27492018000300202Revistahttp://aboonline.org.br/https://old.scielo.br/oai/scielo-oai.phpaboonline@cbo.com.br||abo@cbo.com.br1678-29250004-2749opendoar:2018-06-13T00:00Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO)false |
dc.title.none.fl_str_mv |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases |
title |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases |
spellingShingle |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases Canabrava,Sérgio Cataract extraction Miosis Pupils/physiology Prostheses and implants Tissue expansion/instrumentation |
title_short |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases |
title_full |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases |
title_fullStr |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases |
title_full_unstemmed |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases |
title_sort |
Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases |
author |
Canabrava,Sérgio |
author_facet |
Canabrava,Sérgio Rezende,Pedro Henriques Eliazar,Glauber Coutinho Figueiredo,Sophia Barbosa de Resende,Arthur Fernandes Batista,Wagner Duarte Diniz-Filho,Alberto |
author_role |
author |
author2 |
Rezende,Pedro Henriques Eliazar,Glauber Coutinho Figueiredo,Sophia Barbosa de Resende,Arthur Fernandes Batista,Wagner Duarte Diniz-Filho,Alberto |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Canabrava,Sérgio Rezende,Pedro Henriques Eliazar,Glauber Coutinho Figueiredo,Sophia Barbosa de Resende,Arthur Fernandes Batista,Wagner Duarte Diniz-Filho,Alberto |
dc.subject.por.fl_str_mv |
Cataract extraction Miosis Pupils/physiology Prostheses and implants Tissue expansion/instrumentation |
topic |
Cataract extraction Miosis Pupils/physiology Prostheses and implants Tissue expansion/instrumentation |
description |
ABSTRACT Purpose: To evaluate the outcomes of the first 30 cataract surgeries performed with a new disposable, injector-free, small-pupil expansion device. Methods: This consecutive case series included 30 eyes from 29 patients who underwent cataract surgery using a new disposable small-pupil expansion device called the Canabrava Ring (AJL Ophthalmic S.A, Spain). It is the first iris expansion ring produced with indents that do not align with each other in the superior and inferior regions, resulting in a small vertical length (0.4 mm) that minimizes the risk of endothelial contact. All eyes had poorly dilated pupils of less than 5 mm preoperatively. Fifteen eyes had significant infective or traumatic pathologies preoperatively. Vertical and horizontal pupil diameters were evaluated preoperatively, intraoperatively, and 1 month postoperatively. Results: The mean patient age was 64 ± 11.8 (standard deviation) years. The Canabrava Ring remained engaged throughout all surgeries, except one. All pupils were intraoperatively expanded to a diameter of 6.3 mm. Although preexisting pathology on the innervation of the pupils, the mean pupil diameter returns to a close preoperative size after 1 month surgery. The mean pupil diameters postoperatively and preoperatively were 4.41 and 3.77 mm, respectively (p<0.05). Postoperative complications occurred in eight eyes (one toxoplasmosis reactivation, one retinal detachment, one posterior capsule rupture, one posterior capsule opacification, and four posterior synechiae). These complications occurred in eyes with preexisting traumatic or infective pathologies or synechiae. Conclusion: The Canabrava Ring is effective for expanding and maintaining expansion of small pupils in cataract surgery. The increase in postoperative pupil diameter is clinically diminutive and can most likely be attributed to preexisting pathologies affecting pupil innervation. Further large-scale studies are required to support the present findings. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-06-01 |
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=S0004-27492018000300202 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492018000300202 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0004-2749.20180042 |
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.81 n.3 2018 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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1754209029850136576 |