The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study

Hamed Momeni-moghaddam; Nasim Maddah; James S. Wolffsohn; Mohammad Etezad-razavi; Siamak Zarei-ghanavati; Amir Akhavan Rezayat; Majid Moshirfar

doi:10.1007/s40123-019-0187-5

The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study

Hamed Momeni-moghaddam, Nasim Maddah, James S. Wolffsohn, Mohammad Etezad-razavi, Siamak Zarei-ghanavati, Amir Akhavan Rezayat, Majid Moshirfar

Research output: Contribution to journal › Article › peer-review

Abstract

INTRODUCTION: To evaluate the effects of cycloplegia on the biometric components and anterior segment parameters of the eye.

METHODS: In this cross-sectional study, changes to axial length (AL), anterior chamber depth (ACD) lens thickness, anterior chamber angle (ACA) and volume, corneal thickness in the pupil center (PC), corneal curvature (CC) and white-to-white (WTW) following cycloplegia induced by tropicamide 1% in 42 eyes of patients aged 23-58 years were assessed. Biometric components and anterior segment parameters were measured using an IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany) and a Pentacam HR (Oculus Optikgeräte GmbH, Wetzlar, Germany), respectively.

RESULTS: Significant statistical changes in ACD (increased by 0.06 ± 0.05 mm; p < 0.001), anterior chamber volume (increased by 15.19 ± 10.32 mm 3; p < 0.001), ACA (decreased by 2.18 ± 10.20°; p = 0.029) and lens thickness (decreased by 0.02 ± 0.03 mm; p < 0.001) were observed post-cycloplegia, while the changes in CC, corneal thickness in the PC, WTW and AL were not statistically different (p > 0.05). Also, a significant inferior displacement of the PC along the vertical axes was seen (p = 0.020).

CONCLUSION: Cycloplegia resulted in a deeper ACD and thinner lens thickness. These changes should be considered in determining intraocular lens (IOL) power to prevent refractive surprises in cataract surgery and also in the phakic IOL implantation.

Original language	English
Pages (from-to)	387-395
Number of pages	9
Journal	Ophthalmology and Therapy
Volume	8
Issue number	3
Early online date	3 May 2019
DOIs	https://doi.org/10.1007/s40123-019-0187-5
Publication status	Published - 1 Sept 2019

Bibliographical note

© The Author(s) 2019. Open Access - This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Keywords

Anterior segment
Biometry
Crystalline lens
Cycloplegia
Ocular components

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@article{f0533418875540909949f81fb348aa44,

title = "The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study",

abstract = "INTRODUCTION: To evaluate the effects of cycloplegia on the biometric components and anterior segment parameters of the eye.METHODS: In this cross-sectional study, changes to axial length (AL), anterior chamber depth (ACD) lens thickness, anterior chamber angle (ACA) and volume, corneal thickness in the pupil center (PC), corneal curvature (CC) and white-to-white (WTW) following cycloplegia induced by tropicamide 1% in 42 eyes of patients aged 23-58 years were assessed. Biometric components and anterior segment parameters were measured using an IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany) and a Pentacam HR (Oculus Optikger{\"a}te GmbH, Wetzlar, Germany), respectively.RESULTS: Significant statistical changes in ACD (increased by 0.06 ± 0.05 mm; p < 0.001), anterior chamber volume (increased by 15.19 ± 10.32 mm 3; p < 0.001), ACA (decreased by 2.18 ± 10.20°; p = 0.029) and lens thickness (decreased by 0.02 ± 0.03 mm; p < 0.001) were observed post-cycloplegia, while the changes in CC, corneal thickness in the PC, WTW and AL were not statistically different (p > 0.05). Also, a significant inferior displacement of the PC along the vertical axes was seen (p = 0.020). CONCLUSION: Cycloplegia resulted in a deeper ACD and thinner lens thickness. These changes should be considered in determining intraocular lens (IOL) power to prevent refractive surprises in cataract surgery and also in the phakic IOL implantation.",

keywords = "Anterior segment, Biometry, Crystalline lens, Cycloplegia, Ocular components",

author = "Hamed Momeni-moghaddam and Nasim Maddah and Wolffsohn, {James S.} and Mohammad Etezad-razavi and Siamak Zarei-ghanavati and {Akhavan Rezayat}, Amir and Majid Moshirfar",

note = "{\textcopyright} The Author(s) 2019. Open Access - This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.",

year = "2019",

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doi = "10.1007/s40123-019-0187-5",

language = "English",

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T1 - The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study

AU - Momeni-moghaddam, Hamed

AU - Maddah, Nasim

AU - Wolffsohn, James S.

AU - Etezad-razavi, Mohammad

AU - Zarei-ghanavati, Siamak

AU - Akhavan Rezayat, Amir

AU - Moshirfar, Majid

N1 - © The Author(s) 2019. Open Access - This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - INTRODUCTION: To evaluate the effects of cycloplegia on the biometric components and anterior segment parameters of the eye.METHODS: In this cross-sectional study, changes to axial length (AL), anterior chamber depth (ACD) lens thickness, anterior chamber angle (ACA) and volume, corneal thickness in the pupil center (PC), corneal curvature (CC) and white-to-white (WTW) following cycloplegia induced by tropicamide 1% in 42 eyes of patients aged 23-58 years were assessed. Biometric components and anterior segment parameters were measured using an IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany) and a Pentacam HR (Oculus Optikgeräte GmbH, Wetzlar, Germany), respectively.RESULTS: Significant statistical changes in ACD (increased by 0.06 ± 0.05 mm; p < 0.001), anterior chamber volume (increased by 15.19 ± 10.32 mm 3; p < 0.001), ACA (decreased by 2.18 ± 10.20°; p = 0.029) and lens thickness (decreased by 0.02 ± 0.03 mm; p < 0.001) were observed post-cycloplegia, while the changes in CC, corneal thickness in the PC, WTW and AL were not statistically different (p > 0.05). Also, a significant inferior displacement of the PC along the vertical axes was seen (p = 0.020). CONCLUSION: Cycloplegia resulted in a deeper ACD and thinner lens thickness. These changes should be considered in determining intraocular lens (IOL) power to prevent refractive surprises in cataract surgery and also in the phakic IOL implantation.

AB - INTRODUCTION: To evaluate the effects of cycloplegia on the biometric components and anterior segment parameters of the eye.METHODS: In this cross-sectional study, changes to axial length (AL), anterior chamber depth (ACD) lens thickness, anterior chamber angle (ACA) and volume, corneal thickness in the pupil center (PC), corneal curvature (CC) and white-to-white (WTW) following cycloplegia induced by tropicamide 1% in 42 eyes of patients aged 23-58 years were assessed. Biometric components and anterior segment parameters were measured using an IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany) and a Pentacam HR (Oculus Optikgeräte GmbH, Wetzlar, Germany), respectively.RESULTS: Significant statistical changes in ACD (increased by 0.06 ± 0.05 mm; p < 0.001), anterior chamber volume (increased by 15.19 ± 10.32 mm 3; p < 0.001), ACA (decreased by 2.18 ± 10.20°; p = 0.029) and lens thickness (decreased by 0.02 ± 0.03 mm; p < 0.001) were observed post-cycloplegia, while the changes in CC, corneal thickness in the PC, WTW and AL were not statistically different (p > 0.05). Also, a significant inferior displacement of the PC along the vertical axes was seen (p = 0.020). CONCLUSION: Cycloplegia resulted in a deeper ACD and thinner lens thickness. These changes should be considered in determining intraocular lens (IOL) power to prevent refractive surprises in cataract surgery and also in the phakic IOL implantation.

KW - Anterior segment

KW - Biometry

KW - Crystalline lens

KW - Cycloplegia

KW - Ocular components

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U2 - 10.1007/s40123-019-0187-5

DO - 10.1007/s40123-019-0187-5

M3 - Article

SN - 2193-8245

VL - 8

SP - 387

EP - 395

JO - Ophthalmology and Therapy

JF - Ophthalmology and Therapy

IS - 3

ER -

The Effect of Cycloplegia on the Ocular Biometric and Anterior Segment Parameters: A Cross-Sectional Study

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