Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality

Amanda C Kingston,1,2 Ian G Cox11Bausch + Lomb, Rochester, NY, USA; 2Department of Biomedical Engineering, University of Rochester, Rochester, NY, USAPurpose: The aim of this analysis was to determine the total ocular wavefront aberration values of a large phakic population of physiologically normal...

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Autores principales:	Kingston AC, Cox IG
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2013
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/75a2336cf9e1463da586bc4c237b56b6
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spelling	oai:doaj.org-article:75a2336cf9e1463da586bc4c237b56b62021-12-02T04:05:11ZPopulation spherical aberration: associations with ametropia, age, corneal curvature, and image quality1177-54671177-5483https://doaj.org/article/75a2336cf9e1463da586bc4c237b56b62013-05-01T00:00:00Zhttp://www.dovepress.com/population-spherical-aberration-associations-with-ametropia-age-cornea-a13113https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Amanda C Kingston,1,2 Ian G Cox11Bausch + Lomb, Rochester, NY, USA; 2Department of Biomedical Engineering, University of Rochester, Rochester, NY, USAPurpose: The aim of this analysis was to determine the total ocular wavefront aberration values of a large phakic population of physiologically normal, ametropic eyes, gathered under the same clinical protocol using the same diagnostic wavefront sensor.Materials and methods: Studies were conducted at multiple sites in Asia, North America, Europe, and Australia. A Bausch + Lomb Zywave II Wavefront Aberrometer (Rochester, NY, USA) was used to measure the lower and higher order aberrations of each eye. Data analysis was conducted using linear regression analysis to determine the relationship between total spherical aberration, ametropia, age, corneal curvature, and image quality.Results: Linear regression analysis showed no correlation (r = 0.0207, P = 0.4874) between degree of ametropia and the amount of spherical aberration. There was also no correlation when the population was stratified into myopic and hyperopic refractive groups (rm = 0.0529, Pm = 0.0804 and rh = 0.1572, Ph = 0.2754). There was a statistically significant and weak positive correlation (r = 0.1962, P < 0.001) between age and the amount of spherical aberration measured in the eye; spherical aberration became more positive with increasing age. Also, there was a statistically significant and moderately positive correlation (r = 0.3611, P < 0.001) with steepness of corneal curvature; spherical aberration became more positive with increasing power of the anterior corneal surface. Assessment of image quality using optical design software (Zemax™, Bellevue, WA, USA) showed that there was an overall benefit in correcting the average spherical aberration of this population.Conclusion: Analysis of this dataset provides insights into the inherent spherical aberration of a typical phakic, pre-presbyopic, population and provides the ability to determine what drives the spherical aberration of the eye, as well as what potential benefit a person could gain by compensating for that average spherical aberration.Keywords: ocular aberrations, contact lenses, wavefront sensorKingston ACCox IGDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2013, Iss default, Pp 933-938 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Kingston AC Cox IG Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
description	Amanda C Kingston,1,2 Ian G Cox11Bausch + Lomb, Rochester, NY, USA; 2Department of Biomedical Engineering, University of Rochester, Rochester, NY, USAPurpose: The aim of this analysis was to determine the total ocular wavefront aberration values of a large phakic population of physiologically normal, ametropic eyes, gathered under the same clinical protocol using the same diagnostic wavefront sensor.Materials and methods: Studies were conducted at multiple sites in Asia, North America, Europe, and Australia. A Bausch + Lomb Zywave II Wavefront Aberrometer (Rochester, NY, USA) was used to measure the lower and higher order aberrations of each eye. Data analysis was conducted using linear regression analysis to determine the relationship between total spherical aberration, ametropia, age, corneal curvature, and image quality.Results: Linear regression analysis showed no correlation (r = 0.0207, P = 0.4874) between degree of ametropia and the amount of spherical aberration. There was also no correlation when the population was stratified into myopic and hyperopic refractive groups (rm = 0.0529, Pm = 0.0804 and rh = 0.1572, Ph = 0.2754). There was a statistically significant and weak positive correlation (r = 0.1962, P < 0.001) between age and the amount of spherical aberration measured in the eye; spherical aberration became more positive with increasing age. Also, there was a statistically significant and moderately positive correlation (r = 0.3611, P < 0.001) with steepness of corneal curvature; spherical aberration became more positive with increasing power of the anterior corneal surface. Assessment of image quality using optical design software (Zemax™, Bellevue, WA, USA) showed that there was an overall benefit in correcting the average spherical aberration of this population.Conclusion: Analysis of this dataset provides insights into the inherent spherical aberration of a typical phakic, pre-presbyopic, population and provides the ability to determine what drives the spherical aberration of the eye, as well as what potential benefit a person could gain by compensating for that average spherical aberration.Keywords: ocular aberrations, contact lenses, wavefront sensor
format	article
author	Kingston AC Cox IG
author_facet	Kingston AC Cox IG
author_sort	Kingston AC
title	Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
title_short	Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
title_full	Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
title_fullStr	Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
title_full_unstemmed	Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
title_sort	population spherical aberration: associations with ametropia, age, corneal curvature, and image quality
publisher	Dove Medical Press
publishDate	2013
url	https://doaj.org/article/75a2336cf9e1463da586bc4c237b56b6
work_keys_str_mv	AT kingstonac populationsphericalaberrationassociationswithametropiaagecornealcurvatureandimagequality AT coxig populationsphericalaberrationassociationswithametropiaagecornealcurvatureandimagequality
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Population spherical aberration: associations with ametropia, age, corneal curvature, and image quality

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