The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian

Purpose. To evaluate the effect of toric intraocular lens implantation in cataract patients with irregular corneal steep and flat meridian. Methods. Data of 112 eyes of 78 patients who underwent toric intraocular lens implantation were analyzed retrospectively. Steep meridian deviations (not 180°) a...

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Autores principales:	Ho Sik Hwang, Hyun Seung Kim, Man Soo Kim, Eun Chul Kim
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/2bf188389c894e6fac7ec3aa2b1b836e
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spelling	oai:doaj.org-article:2bf188389c894e6fac7ec3aa2b1b836e2021-11-15T01:19:41ZThe Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian2090-005810.1155/2021/3630668https://doaj.org/article/2bf188389c894e6fac7ec3aa2b1b836e2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/3630668https://doaj.org/toc/2090-0058Purpose. To evaluate the effect of toric intraocular lens implantation in cataract patients with irregular corneal steep and flat meridian. Methods. Data of 112 eyes of 78 patients who underwent toric intraocular lens implantation were analyzed retrospectively. Steep meridian deviations (not 180°) and steep and flat meridian deviations (not 90°) were classified as 0, 1–9, 10–19, 20–29, 30–39, and over 30°. Meridian deviation was measured with a sagittal map of a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany) using PicPickTools (NGWIN, Seoul, Korea). Results. Residual astigmatism (D) of 0 (0.51 ± 0.13, 0.55 ± 0.15) and 1–9 (0.61 ± 0.16, 0.66 ± 0.19) groups were significantly lower than that of 10–19 (0.92 ± 0.24, 0.90 ± 0.28), 20–29 (0.10 ± 0.32, 1.01 ± 0.35), and over 30° groups (1.12 ± 0.37, 1.14 ± 0.40) both in steep meridian deviations and horizontal and vertical meridian deviations at 6 months (P<0.05). Postoperative mean UCVA (logMAR) of 0 (0.09 ± 0.04, 0.09 ± 0.05) (logMAR) and 1–9 (0.10 ± 0.04, 0.11 ± 0.08) groups was significantly improved compared to that of 10–19 (0.14 ± 0.05, 0.17 ± 0.10), 20–29 (0.18 ± 0.08, 0.21 ± 0.10), and over 30° groups (0.20 ± 0.09, 0.22 ± 0.11) both in steep meridian deviations and horizontal and vertical meridian deviations at 6 months (P<0.05). Conclusions. Correction of astigmatism with toric intraocular lens implantation is not accurate in corneas with steep meridian deviations and steep and flat meridian deviations of more than 10°. Therefore, care should be taken when we perform toric intraocular lens implantation in patients with irregular corneal meridian.Ho Sik HwangHyun Seung KimMan Soo KimEun Chul KimHindawi LimitedarticleOphthalmologyRE1-994ENJournal of Ophthalmology, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Ho Sik Hwang Hyun Seung Kim Man Soo Kim Eun Chul Kim The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian
description	Purpose. To evaluate the effect of toric intraocular lens implantation in cataract patients with irregular corneal steep and flat meridian. Methods. Data of 112 eyes of 78 patients who underwent toric intraocular lens implantation were analyzed retrospectively. Steep meridian deviations (not 180°) and steep and flat meridian deviations (not 90°) were classified as 0, 1–9, 10–19, 20–29, 30–39, and over 30°. Meridian deviation was measured with a sagittal map of a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany) using PicPickTools (NGWIN, Seoul, Korea). Results. Residual astigmatism (D) of 0 (0.51 ± 0.13, 0.55 ± 0.15) and 1–9 (0.61 ± 0.16, 0.66 ± 0.19) groups were significantly lower than that of 10–19 (0.92 ± 0.24, 0.90 ± 0.28), 20–29 (0.10 ± 0.32, 1.01 ± 0.35), and over 30° groups (1.12 ± 0.37, 1.14 ± 0.40) both in steep meridian deviations and horizontal and vertical meridian deviations at 6 months (P<0.05). Postoperative mean UCVA (logMAR) of 0 (0.09 ± 0.04, 0.09 ± 0.05) (logMAR) and 1–9 (0.10 ± 0.04, 0.11 ± 0.08) groups was significantly improved compared to that of 10–19 (0.14 ± 0.05, 0.17 ± 0.10), 20–29 (0.18 ± 0.08, 0.21 ± 0.10), and over 30° groups (0.20 ± 0.09, 0.22 ± 0.11) both in steep meridian deviations and horizontal and vertical meridian deviations at 6 months (P<0.05). Conclusions. Correction of astigmatism with toric intraocular lens implantation is not accurate in corneas with steep meridian deviations and steep and flat meridian deviations of more than 10°. Therefore, care should be taken when we perform toric intraocular lens implantation in patients with irregular corneal meridian.
format	article
author	Ho Sik Hwang Hyun Seung Kim Man Soo Kim Eun Chul Kim
author_facet	Ho Sik Hwang Hyun Seung Kim Man Soo Kim Eun Chul Kim
author_sort	Ho Sik Hwang
title	The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian
title_short	The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian
title_full	The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian
title_fullStr	The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian
title_full_unstemmed	The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian
title_sort	effect of toric intraocular lens implantation in irregular corneal steep and flat meridian
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/2bf188389c894e6fac7ec3aa2b1b836e
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The Effect of Toric Intraocular Lens Implantation in Irregular Corneal Steep and Flat Meridian

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