Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors

Kazuki Matsuura,1 Yoshitsugu Inoue2 1Nojima Hospital, 2Tottori University, Kurayoshi City, Tottori, Japan Background: The purpose of this study was to assess the risk of intraocular contamination caused by intraocular lens (IOL) insertion with injectors by observing the dynamics of an ophthalmic v...

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Autores principales:	Matsuura K, Inoue Y
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2014
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/efeb8fd9ce6e47b1bfdd439df7eca2d1
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spelling	oai:doaj.org-article:efeb8fd9ce6e47b1bfdd439df7eca2d12021-12-02T08:27:25ZOphthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors1177-5483https://doaj.org/article/efeb8fd9ce6e47b1bfdd439df7eca2d12014-01-01T00:00:00Zhttp://www.dovepress.com/ophthalmic-viscosurgical-device-backflow-into-cartridge-during-intraoc-a15673https://doaj.org/toc/1177-5483 Kazuki Matsuura,1 Yoshitsugu Inoue2 1Nojima Hospital, 2Tottori University, Kurayoshi City, Tottori, Japan Background: The purpose of this study was to assess the risk of intraocular contamination caused by intraocular lens (IOL) insertion with injectors by observing the dynamics of an ophthalmic viscosurgical device (OVD). Methods: Each type of injector was equipped with a colored OVD and IOL, and a 2 mm length from the tip of the cartridge was replaced with a colored OVD. The various combinations of IOLs and injectors used were: a three-piece shaped IOL, VA60BBR + TypeE1 (HOYA incision size 2.5 mm; group A, n=5); a single-piece IOL, 251+ iSert micro, preloaded (HOYA, incision size 2.2 mm; group G, n=5); and a single-piece IOL, SN6CWS preloaded (Alcon, incision size 2.7 mm; group C, n=5). Results: In group A, the intraocular OVD instantly flowed backward into the injector, whereas the colored OVD was pushed backward deep inside the cartridge without flowing into the eye. In group B, the backflow of the intraocular OVD into the injector was limited, resulting in the influx of a large amount of the colored OVD into the eye along with the IOL. In group C, as in group A, a large amount of the intraocular OVD flowed backward into the injector. Consequently, a small amount of the colored OVD flowed into the eye. Conclusion: The tip of the injector and OVD could be contaminated because the surgical field cannot be completely sterile, even after preoperative disinfection. Our experiments revealed that OVD backflow into the injector cavity occurs during IOL insertion, and this phenomenon may have minimized intraocular contamination. However, small-diameter cartridges along with plate-type haptics allow insufficient OVD backflow, resulting in intraocular influx of the contaminated OVD. Surgeons have to be notified that intraoperative bacterial contamination can occur even after IOL insertion using injectors. Keywords: intraocular lens insertion, endophthalmitis, injector, backflow, ophthalmic viscosurgical deviceMatsuura KInoue YDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2014, Iss default, Pp 321-325 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Matsuura K Inoue Y Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors
description	Kazuki Matsuura,1 Yoshitsugu Inoue2 1Nojima Hospital, 2Tottori University, Kurayoshi City, Tottori, Japan Background: The purpose of this study was to assess the risk of intraocular contamination caused by intraocular lens (IOL) insertion with injectors by observing the dynamics of an ophthalmic viscosurgical device (OVD). Methods: Each type of injector was equipped with a colored OVD and IOL, and a 2 mm length from the tip of the cartridge was replaced with a colored OVD. The various combinations of IOLs and injectors used were: a three-piece shaped IOL, VA60BBR + TypeE1 (HOYA incision size 2.5 mm; group A, n=5); a single-piece IOL, 251+ iSert micro, preloaded (HOYA, incision size 2.2 mm; group G, n=5); and a single-piece IOL, SN6CWS preloaded (Alcon, incision size 2.7 mm; group C, n=5). Results: In group A, the intraocular OVD instantly flowed backward into the injector, whereas the colored OVD was pushed backward deep inside the cartridge without flowing into the eye. In group B, the backflow of the intraocular OVD into the injector was limited, resulting in the influx of a large amount of the colored OVD into the eye along with the IOL. In group C, as in group A, a large amount of the intraocular OVD flowed backward into the injector. Consequently, a small amount of the colored OVD flowed into the eye. Conclusion: The tip of the injector and OVD could be contaminated because the surgical field cannot be completely sterile, even after preoperative disinfection. Our experiments revealed that OVD backflow into the injector cavity occurs during IOL insertion, and this phenomenon may have minimized intraocular contamination. However, small-diameter cartridges along with plate-type haptics allow insufficient OVD backflow, resulting in intraocular influx of the contaminated OVD. Surgeons have to be notified that intraoperative bacterial contamination can occur even after IOL insertion using injectors. Keywords: intraocular lens insertion, endophthalmitis, injector, backflow, ophthalmic viscosurgical device
format	article
author	Matsuura K Inoue Y
author_facet	Matsuura K Inoue Y
author_sort	Matsuura K
title	Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors
title_short	Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors
title_full	Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors
title_fullStr	Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors
title_full_unstemmed	Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors
title_sort	ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors
publisher	Dove Medical Press
publishDate	2014
url	https://doaj.org/article/efeb8fd9ce6e47b1bfdd439df7eca2d1
work_keys_str_mv	AT matsuurak ophthalmicviscosurgicaldevicebackflowintocartridgeduringintraocularlensinsertionusinginjectors AT inouey ophthalmicviscosurgicaldevicebackflowintocartridgeduringintraocularlensinsertionusinginjectors
_version_	1718398516972224512

Ophthalmic viscosurgical device backflow into cartridge during intraocular lens insertion using injectors

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