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Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis
BACKGROUND: Current surgical techniques for retinal prosthetic implantation require long and complicated surgery, which can increase the risk of complications and adverse outcomes. METHOD: The suprachoroidal position is known to be an easier location to access surgically, and so this study aimed to...
Autores principales: | , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BlackWell Publishing Ltd
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4233968/ https://www.ncbi.nlm.nih.gov/pubmed/24330322 http://dx.doi.org/10.1111/ceo.12287 |
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author | Saunders, Alexia L Williams, Chris E Heriot, Wilson Briggs, Robert Yeoh, Jonthan Nayagam, David AX McCombe, Mark Villalobos, Joel Burns, Owen Luu, Chi D Ayton, Lauren N McPhedran, Michelle Opie, Nicholas L McGowan, Ceara Shepherd, Robert K Guymer, Robyn Allen, Penelope J |
author_facet | Saunders, Alexia L Williams, Chris E Heriot, Wilson Briggs, Robert Yeoh, Jonthan Nayagam, David AX McCombe, Mark Villalobos, Joel Burns, Owen Luu, Chi D Ayton, Lauren N McPhedran, Michelle Opie, Nicholas L McGowan, Ceara Shepherd, Robert K Guymer, Robyn Allen, Penelope J |
author_sort | Saunders, Alexia L |
collection | PubMed |
description | BACKGROUND: Current surgical techniques for retinal prosthetic implantation require long and complicated surgery, which can increase the risk of complications and adverse outcomes. METHOD: The suprachoroidal position is known to be an easier location to access surgically, and so this study aimed to develop a surgical procedure for implanting a prototype suprachoroidal retinal prosthesis. The array implantation procedure was developed in 14 enucleated eyes. A full-thickness scleral incision was made parallel to the intermuscular septum and superotemporal to the lateral rectus muscle. A pocket was created in the suprachoroidal space, and the moulded electrode array was inserted. The scleral incision was closed and scleral anchor point sutured. In 9 of the 14 eyes examined, the device insertion was obstructed by the posterior ciliary neurovascular bundle. Subsequently, the position of this neurovascular bundle in 10 eyes was characterized. Implantation and lead routing procedure was then developed in six human cadavers. The array was tunnelled forward from behind the pinna to the orbit. Next, a lateral canthotomy was made. Lead fixation was established by creating an orbitotomy drilled in the frontal process of the zygomatic bone. The lateral rectus muscle was detached, and implantation was carried out. Finally, pinna to lateral canthus measurements were taken on 61 patients in order to determine optimal lead length. RESULTS: These results identified potential anatomical obstructions and informed the anatomical fitting of the suprachoroidal retinal prosthesis. CONCLUSION: As a result of this work, a straightforward surgical approach for accurate anatomical suprachoroidal array and lead placement was developed for clinical application. |
format | Online Article Text |
id | pubmed-4233968 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | BlackWell Publishing Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-42339682014-12-03 Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis Saunders, Alexia L Williams, Chris E Heriot, Wilson Briggs, Robert Yeoh, Jonthan Nayagam, David AX McCombe, Mark Villalobos, Joel Burns, Owen Luu, Chi D Ayton, Lauren N McPhedran, Michelle Opie, Nicholas L McGowan, Ceara Shepherd, Robert K Guymer, Robyn Allen, Penelope J Clin Experiment Ophthalmol Original Articles BACKGROUND: Current surgical techniques for retinal prosthetic implantation require long and complicated surgery, which can increase the risk of complications and adverse outcomes. METHOD: The suprachoroidal position is known to be an easier location to access surgically, and so this study aimed to develop a surgical procedure for implanting a prototype suprachoroidal retinal prosthesis. The array implantation procedure was developed in 14 enucleated eyes. A full-thickness scleral incision was made parallel to the intermuscular septum and superotemporal to the lateral rectus muscle. A pocket was created in the suprachoroidal space, and the moulded electrode array was inserted. The scleral incision was closed and scleral anchor point sutured. In 9 of the 14 eyes examined, the device insertion was obstructed by the posterior ciliary neurovascular bundle. Subsequently, the position of this neurovascular bundle in 10 eyes was characterized. Implantation and lead routing procedure was then developed in six human cadavers. The array was tunnelled forward from behind the pinna to the orbit. Next, a lateral canthotomy was made. Lead fixation was established by creating an orbitotomy drilled in the frontal process of the zygomatic bone. The lateral rectus muscle was detached, and implantation was carried out. Finally, pinna to lateral canthus measurements were taken on 61 patients in order to determine optimal lead length. RESULTS: These results identified potential anatomical obstructions and informed the anatomical fitting of the suprachoroidal retinal prosthesis. CONCLUSION: As a result of this work, a straightforward surgical approach for accurate anatomical suprachoroidal array and lead placement was developed for clinical application. BlackWell Publishing Ltd 2014-01 2014-01-01 /pmc/articles/PMC4233968/ /pubmed/24330322 http://dx.doi.org/10.1111/ceo.12287 Text en © 2013 The Authors. Clinical & Experimental Ophthalmology published by Wiley Publishing Asia Pty Ltd on behalf of Royal Australian and New Zealand College of Ophthalmologists. http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles Saunders, Alexia L Williams, Chris E Heriot, Wilson Briggs, Robert Yeoh, Jonthan Nayagam, David AX McCombe, Mark Villalobos, Joel Burns, Owen Luu, Chi D Ayton, Lauren N McPhedran, Michelle Opie, Nicholas L McGowan, Ceara Shepherd, Robert K Guymer, Robyn Allen, Penelope J Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis |
title | Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis |
title_full | Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis |
title_fullStr | Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis |
title_full_unstemmed | Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis |
title_short | Development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis |
title_sort | development of a surgical procedure for implantation of a prototype suprachoroidal retinal prosthesis |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4233968/ https://www.ncbi.nlm.nih.gov/pubmed/24330322 http://dx.doi.org/10.1111/ceo.12287 |
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