Injection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study.
<h4>Purpose</h4>Experimental study to measure the intraocular lens (IOL) injection time and injection speed at different intraocular pressure (IOP) settings when using the AutonoMe® injector.<h4>Methods</h4>In this experimental study, following phacoemulsification in porcine...
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oai:doaj.org-article:7f3d1ca565da40aa91059e8c07323a1e2021-12-02T20:06:48ZInjection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study.1932-620310.1371/journal.pone.0254901https://doaj.org/article/7f3d1ca565da40aa91059e8c07323a1e2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0254901https://doaj.org/toc/1932-6203<h4>Purpose</h4>Experimental study to measure the intraocular lens (IOL) injection time and injection speed at different intraocular pressure (IOP) settings when using the AutonoMe® injector.<h4>Methods</h4>In this experimental study, following phacoemulsification in porcine cadaver eyes, a trocar was inserted at pars plana with a connected infusion and IOPs of 20, 50 and 80 mmHg were generated by altering the infusion height. Twelve CO2 gas-driven injectors were used to implant an IOL via a corneal incision of 2.2 mm. For each IOP setting, the duration of the IOL injection and the injection speed was measured by analyzing a video recording of the procedure.<h4>Results</h4>The mean ±SD injection time (seconds) was 4.47±0.50 at 20 mmHg, 4.98±0.55 at 50 mmHg and 5.47±0.20 at 80 mmHg. The mean ±SD injection speed (millimeters per seconds) was 1.36±0.15 at 20 mmHg, 1.22±0.14 at 50 mmHg and 1.10±0.04 at 80 mmHg. There was a significant (p<0.05) difference between the 20 and 80 mmHg groups in mean injection duration and injection speed.<h4>Conclusion</h4>The CO2 gas driven injector allows a safe IOL injection even at elevated IOP. Although the implantation time is slightly extended at higher IOPs, this does not seem to be clinically relevant. No IOL damage was observed at these pressure settings.Jan N WeindlerTadas NaujokaitisSonja K SchickhardtRamin KhoramniaGerd U AuffarthPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0254901 (2021) |
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Medicine R Science Q Jan N Weindler Tadas Naujokaitis Sonja K Schickhardt Ramin Khoramnia Gerd U Auffarth Injection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study. |
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<h4>Purpose</h4>Experimental study to measure the intraocular lens (IOL) injection time and injection speed at different intraocular pressure (IOP) settings when using the AutonoMe® injector.<h4>Methods</h4>In this experimental study, following phacoemulsification in porcine cadaver eyes, a trocar was inserted at pars plana with a connected infusion and IOPs of 20, 50 and 80 mmHg were generated by altering the infusion height. Twelve CO2 gas-driven injectors were used to implant an IOL via a corneal incision of 2.2 mm. For each IOP setting, the duration of the IOL injection and the injection speed was measured by analyzing a video recording of the procedure.<h4>Results</h4>The mean ±SD injection time (seconds) was 4.47±0.50 at 20 mmHg, 4.98±0.55 at 50 mmHg and 5.47±0.20 at 80 mmHg. The mean ±SD injection speed (millimeters per seconds) was 1.36±0.15 at 20 mmHg, 1.22±0.14 at 50 mmHg and 1.10±0.04 at 80 mmHg. There was a significant (p<0.05) difference between the 20 and 80 mmHg groups in mean injection duration and injection speed.<h4>Conclusion</h4>The CO2 gas driven injector allows a safe IOL injection even at elevated IOP. Although the implantation time is slightly extended at higher IOPs, this does not seem to be clinically relevant. No IOL damage was observed at these pressure settings. |
format |
article |
author |
Jan N Weindler Tadas Naujokaitis Sonja K Schickhardt Ramin Khoramnia Gerd U Auffarth |
author_facet |
Jan N Weindler Tadas Naujokaitis Sonja K Schickhardt Ramin Khoramnia Gerd U Auffarth |
author_sort |
Jan N Weindler |
title |
Injection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study. |
title_short |
Injection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study. |
title_full |
Injection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study. |
title_fullStr |
Injection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study. |
title_full_unstemmed |
Injection time related to intraocular pressure using a CO2 driven preloaded injector: An experimental laboratory study. |
title_sort |
injection time related to intraocular pressure using a co2 driven preloaded injector: an experimental laboratory study. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2021 |
url |
https://doaj.org/article/7f3d1ca565da40aa91059e8c07323a1e |
work_keys_str_mv |
AT jannweindler injectiontimerelatedtointraocularpressureusingaco2drivenpreloadedinjectoranexperimentallaboratorystudy AT tadasnaujokaitis injectiontimerelatedtointraocularpressureusingaco2drivenpreloadedinjectoranexperimentallaboratorystudy AT sonjakschickhardt injectiontimerelatedtointraocularpressureusingaco2drivenpreloadedinjectoranexperimentallaboratorystudy AT raminkhoramnia injectiontimerelatedtointraocularpressureusingaco2drivenpreloadedinjectoranexperimentallaboratorystudy AT gerduauffarth injectiontimerelatedtointraocularpressureusingaco2drivenpreloadedinjectoranexperimentallaboratorystudy |
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1718375368191115264 |