Influence of frosted haptics on rotational stability of toric intraocular lenses

Abstract We investigated the unfolding property and rotational stability of a new toric intraocular lens (IOL); TECNIS toric II (toric-II, ZCW, Johnson & Johnson) that is an improved version of TECNIS toric IOL (toric-I, ZCV). Both IOLs are based on an identical platform, except for the frosted...

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Autores principales:	Ruriko Takaku, Shinichiro Nakano, Masaharu Iida, Tetsuro Oshika
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a55127cab60b4766be958ea23b8d81b7
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spelling	oai:doaj.org-article:a55127cab60b4766be958ea23b8d81b72021-12-02T16:50:24ZInfluence of frosted haptics on rotational stability of toric intraocular lenses10.1038/s41598-021-94293-32045-2322https://doaj.org/article/a55127cab60b4766be958ea23b8d81b72021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94293-3https://doaj.org/toc/2045-2322Abstract We investigated the unfolding property and rotational stability of a new toric intraocular lens (IOL); TECNIS toric II (toric-II, ZCW, Johnson & Johnson) that is an improved version of TECNIS toric IOL (toric-I, ZCV). Both IOLs are based on an identical platform, except for the frosted haptics with toric-II IOL. The study consisted of two parts; experimental study and clinical, retrospective, case series. Experimental study indicated that the overall time from IOL ejection to unfolding to 11 mm was significantly shorter with toricII than toric-I IOLs (p = 0.032), due to the earlier separation of the haptics from the optic with toric-II IOL. Clinical study included 131 eyes of 99 patients who had undergone phacoemulsification and toric IOL implantation. At 3 months postoperatively, toric-II IOL showed significantly better rotational stability than toric-I IOL, including smaller residual manifest astigmatism (p = 0.018), less amount of axis misalignment from the intended axis (p = 0.04), lower incidence of misalignment > 10º (p = 0.0044), and less degree of prediction errors (p = 0.043). Postoperative uncorrected distance visual acuity tended to be better in the toric-II than in the toric-I groups, with marginal statistical difference (p = 0.057). TECNIS toric II IOL with the frosted haptics showed significantly better rotational stability than its predecessor, probably due to quicker unfolding and greater friction with the capsular bag.Ruriko TakakuShinichiro NakanoMasaharu IidaTetsuro OshikaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ruriko Takaku Shinichiro Nakano Masaharu Iida Tetsuro Oshika Influence of frosted haptics on rotational stability of toric intraocular lenses
description	Abstract We investigated the unfolding property and rotational stability of a new toric intraocular lens (IOL); TECNIS toric II (toric-II, ZCW, Johnson & Johnson) that is an improved version of TECNIS toric IOL (toric-I, ZCV). Both IOLs are based on an identical platform, except for the frosted haptics with toric-II IOL. The study consisted of two parts; experimental study and clinical, retrospective, case series. Experimental study indicated that the overall time from IOL ejection to unfolding to 11 mm was significantly shorter with toricII than toric-I IOLs (p = 0.032), due to the earlier separation of the haptics from the optic with toric-II IOL. Clinical study included 131 eyes of 99 patients who had undergone phacoemulsification and toric IOL implantation. At 3 months postoperatively, toric-II IOL showed significantly better rotational stability than toric-I IOL, including smaller residual manifest astigmatism (p = 0.018), less amount of axis misalignment from the intended axis (p = 0.04), lower incidence of misalignment > 10º (p = 0.0044), and less degree of prediction errors (p = 0.043). Postoperative uncorrected distance visual acuity tended to be better in the toric-II than in the toric-I groups, with marginal statistical difference (p = 0.057). TECNIS toric II IOL with the frosted haptics showed significantly better rotational stability than its predecessor, probably due to quicker unfolding and greater friction with the capsular bag.
format	article
author	Ruriko Takaku Shinichiro Nakano Masaharu Iida Tetsuro Oshika
author_facet	Ruriko Takaku Shinichiro Nakano Masaharu Iida Tetsuro Oshika
author_sort	Ruriko Takaku
title	Influence of frosted haptics on rotational stability of toric intraocular lenses
title_short	Influence of frosted haptics on rotational stability of toric intraocular lenses
title_full	Influence of frosted haptics on rotational stability of toric intraocular lenses
title_fullStr	Influence of frosted haptics on rotational stability of toric intraocular lenses
title_full_unstemmed	Influence of frosted haptics on rotational stability of toric intraocular lenses
title_sort	influence of frosted haptics on rotational stability of toric intraocular lenses
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a55127cab60b4766be958ea23b8d81b7
work_keys_str_mv	AT rurikotakaku influenceoffrostedhapticsonrotationalstabilityoftoricintraocularlenses AT shinichironakano influenceoffrostedhapticsonrotationalstabilityoftoricintraocularlenses AT masaharuiida influenceoffrostedhapticsonrotationalstabilityoftoricintraocularlenses AT tetsurooshika influenceoffrostedhapticsonrotationalstabilityoftoricintraocularlenses
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Influence of frosted haptics on rotational stability of toric intraocular lenses

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