Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation

Abstract An Intraocular Lens (IOL) fixated on the iris either anteriorly, as a phakic IOL, or posteriorly, as an aphakic IOL, can influence pupil motility. In this interventional case series study, we evaluated pupil size under different levels of illumination (scotopic = 0.04 lx, low-mesopic = 0.4 ...

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Autores principales:	Yanxiu Sun, Maximilian Hammer, Timur M. Yildirim, Ramin Khoramnia, Gerd U. Auffarth
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f8d56a5e984d4b40b13a511457c8b30c
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spelling	oai:doaj.org-article:f8d56a5e984d4b40b13a511457c8b30c2021-11-08T10:52:31ZPupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation10.1038/s41598-021-01051-62045-2322https://doaj.org/article/f8d56a5e984d4b40b13a511457c8b30c2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01051-6https://doaj.org/toc/2045-2322Abstract An Intraocular Lens (IOL) fixated on the iris either anteriorly, as a phakic IOL, or posteriorly, as an aphakic IOL, can influence pupil motility. In this interventional case series study, we evaluated pupil size under different levels of illumination (scotopic = 0.04 lx, low-mesopic = 0.4 lx and high-mesopic = 4 lx) for anterior iris-claw IOL fixation for correcting myopia or hyperopia (IFPH), retropupillary iris-claw IOL fixation to correct aphakia or as treatment for late in-the-bag IOL dislocation/subluxation (IFRP), and capsular-fixation IOL in-the-bag implantation (IB). Pupil size was measured preoperatively for the IFPH- and IB-group as well as 6 months after surgery for all groups. We analyzed a total of 70 eyes: 22 eyes of 11 patients with phakic IOLs, 22 eyes of 20 patients in the IFRP group and 26 eyes of 13 patients in the IB group. Both IFPH and IB showed a smaller postoperative scotopic pupil size, compared with the preoperative values. When compared to postoperative values of IB and IFPH, IFRP showed a significantly smaller postoperative scotopic pupil size (IFPH: 5.89 ± 0.83 mm, IFRP: 4.37 ± 0.83 mm, IB: 5.34 ± 0.98 mm, p < 0.001) while no differences were seen at high-mesopic lighting. Neither of the surgical techniques seems to impair the constriction of the pupil.Yanxiu SunMaximilian HammerTimur M. YildirimRamin KhoramniaGerd U. AuffarthNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yanxiu Sun Maximilian Hammer Timur M. Yildirim Ramin Khoramnia Gerd U. Auffarth Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation
description	Abstract An Intraocular Lens (IOL) fixated on the iris either anteriorly, as a phakic IOL, or posteriorly, as an aphakic IOL, can influence pupil motility. In this interventional case series study, we evaluated pupil size under different levels of illumination (scotopic = 0.04 lx, low-mesopic = 0.4 lx and high-mesopic = 4 lx) for anterior iris-claw IOL fixation for correcting myopia or hyperopia (IFPH), retropupillary iris-claw IOL fixation to correct aphakia or as treatment for late in-the-bag IOL dislocation/subluxation (IFRP), and capsular-fixation IOL in-the-bag implantation (IB). Pupil size was measured preoperatively for the IFPH- and IB-group as well as 6 months after surgery for all groups. We analyzed a total of 70 eyes: 22 eyes of 11 patients with phakic IOLs, 22 eyes of 20 patients in the IFRP group and 26 eyes of 13 patients in the IB group. Both IFPH and IB showed a smaller postoperative scotopic pupil size, compared with the preoperative values. When compared to postoperative values of IB and IFPH, IFRP showed a significantly smaller postoperative scotopic pupil size (IFPH: 5.89 ± 0.83 mm, IFRP: 4.37 ± 0.83 mm, IB: 5.34 ± 0.98 mm, p < 0.001) while no differences were seen at high-mesopic lighting. Neither of the surgical techniques seems to impair the constriction of the pupil.
format	article
author	Yanxiu Sun Maximilian Hammer Timur M. Yildirim Ramin Khoramnia Gerd U. Auffarth
author_facet	Yanxiu Sun Maximilian Hammer Timur M. Yildirim Ramin Khoramnia Gerd U. Auffarth
author_sort	Yanxiu Sun
title	Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation
title_short	Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation
title_full	Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation
title_fullStr	Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation
title_full_unstemmed	Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation
title_sort	pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f8d56a5e984d4b40b13a511457c8b30c
work_keys_str_mv	AT yanxiusun pupildynamicsafterinthebagversusanteriorandretropupillaryirisfixatedintraocularlensimplantation AT maximilianhammer pupildynamicsafterinthebagversusanteriorandretropupillaryirisfixatedintraocularlensimplantation AT timurmyildirim pupildynamicsafterinthebagversusanteriorandretropupillaryirisfixatedintraocularlensimplantation AT raminkhoramnia pupildynamicsafterinthebagversusanteriorandretropupillaryirisfixatedintraocularlensimplantation AT gerduauffarth pupildynamicsafterinthebagversusanteriorandretropupillaryirisfixatedintraocularlensimplantation
_version_	1718442580327268352

Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation

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