The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens

The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens

Kjell G Gundersen,1 Richard Potvin2 1IFocus Øyeklinikk AS, Haugesund, Norway; 2Science in Vision, Bend, OR, USACorrespondence: Kjell G Gundersen Email kg@ifocus.noPurpose: To quantify the changes in the binocular defocus curve associated with the Vivity™ non-diffractive extended vision intraocular l...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Gundersen KG, Potvin R
Formato: article
Lenguaje:EN
Publicado: Dove Medical Press 2021
Materias:
non-diffractive
extended vision
extended depth of focus
presbyopia
cataract
Ophthalmology
RE1-994
Acceso en línea:https://doaj.org/article/d88dfa7abaa7486ca8cd4fd8430dddf6
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:d88dfa7abaa7486ca8cd4fd8430dddf6
record_format dspace
spelling oai:doaj.org-article:d88dfa7abaa7486ca8cd4fd8430dddf62021-12-02T18:01:04ZThe Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens1177-5483https://doaj.org/article/d88dfa7abaa7486ca8cd4fd8430dddf62021-08-01T00:00:00Zhttps://www.dovepress.com/the-effect-of-spectacle-induced-low-myopia-in-the-non-dominant-eye-on--peer-reviewed-fulltext-article-OPTHhttps://doaj.org/toc/1177-5483Kjell G Gundersen,1 Richard Potvin2 1IFocus Øyeklinikk AS, Haugesund, Norway; 2Science in Vision, Bend, OR, USACorrespondence: Kjell G Gundersen Email kg@ifocus.noPurpose: To quantify the changes in the binocular defocus curve associated with the Vivity™ non-diffractive extended vision intraocular lens when the dominant eye was targeted for emmetropia and the non-dominant eye was artificially targeted for slight myopia using spectacles.Patients and Methods: This was a non-interventional research study of the corrected binocular defocus curve associated with binocular emmetropia (Setting A) and with emmetropia in the dominant eye and two different levels of myopia simulated in the non-dominant eye (− 0.50 D, Setting B and − 1.00 D, Setting C). Subjects were patients implanted with the AcrySof® IQ Vivity® intraocular lens in both eyes 3 to 12 months previously. Using the defocus data, the percentage of subjects with a continuous 2.5 D range of vision (distance to 40 cm) was calculated for various levels of minimum visual acuity (VA).Results: Forty subjects were enrolled. The mean spherical equivalent refraction was − 0.06 D ± 0.36 D, with 0.37 D ± 0.29 D of refractive cylinder. There was no statistically significant difference in the mean VA at − 0.25 D or at − 0.50 D vergences between the test Settings, but there was a statistically significant difference at all other vergences. Differences were particularly noticeable at − 2.00 D, − 2.50 D and − 3.00 D, where higher myopia in the non-dominant eye yielded better binocular VA. A 2.5 D range of functional vision (20/25) was achieved by 38% of subjects at Setting A, 68% of subjects at Setting B and 85% of subjects at Setting C. At setting C, all but one subject (39/40, 97.5%) had a 2.5 D range of vision with a VA of 20/32 or better.Conclusion: Significant gains in binocular near vision, with only a nominal effect on distance vision, can be achieved with the Vivity IOL by leaving the non-dominant eye of patients with 0.50 D or 1.00 D of myopia.Keywords: non-diffractive, extended vision, extended depth of focus, presbyopia, cataractGundersen KGPotvin RDove Medical Pressarticlenon-diffractiveextended visionextended depth of focuspresbyopiacataractOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 15, Pp 3541-3547 (2021)
institution DOAJ
collection DOAJ
language EN
topic non-diffractive
extended vision
extended depth of focus
presbyopia
cataract
Ophthalmology
RE1-994
spellingShingle non-diffractive
extended vision
extended depth of focus
presbyopia
cataract
Ophthalmology
RE1-994
Gundersen KG
Potvin R
The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens
description Kjell G Gundersen,1 Richard Potvin2 1IFocus Øyeklinikk AS, Haugesund, Norway; 2Science in Vision, Bend, OR, USACorrespondence: Kjell G Gundersen Email kg@ifocus.noPurpose: To quantify the changes in the binocular defocus curve associated with the Vivity™ non-diffractive extended vision intraocular lens when the dominant eye was targeted for emmetropia and the non-dominant eye was artificially targeted for slight myopia using spectacles.Patients and Methods: This was a non-interventional research study of the corrected binocular defocus curve associated with binocular emmetropia (Setting A) and with emmetropia in the dominant eye and two different levels of myopia simulated in the non-dominant eye (− 0.50 D, Setting B and − 1.00 D, Setting C). Subjects were patients implanted with the AcrySof® IQ Vivity® intraocular lens in both eyes 3 to 12 months previously. Using the defocus data, the percentage of subjects with a continuous 2.5 D range of vision (distance to 40 cm) was calculated for various levels of minimum visual acuity (VA).Results: Forty subjects were enrolled. The mean spherical equivalent refraction was − 0.06 D ± 0.36 D, with 0.37 D ± 0.29 D of refractive cylinder. There was no statistically significant difference in the mean VA at − 0.25 D or at − 0.50 D vergences between the test Settings, but there was a statistically significant difference at all other vergences. Differences were particularly noticeable at − 2.00 D, − 2.50 D and − 3.00 D, where higher myopia in the non-dominant eye yielded better binocular VA. A 2.5 D range of functional vision (20/25) was achieved by 38% of subjects at Setting A, 68% of subjects at Setting B and 85% of subjects at Setting C. At setting C, all but one subject (39/40, 97.5%) had a 2.5 D range of vision with a VA of 20/32 or better.Conclusion: Significant gains in binocular near vision, with only a nominal effect on distance vision, can be achieved with the Vivity IOL by leaving the non-dominant eye of patients with 0.50 D or 1.00 D of myopia.Keywords: non-diffractive, extended vision, extended depth of focus, presbyopia, cataract
format article
author Gundersen KG
Potvin R
author_facet Gundersen KG
Potvin R
author_sort Gundersen KG
title The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens
title_short The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens
title_full The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens
title_fullStr The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens
title_full_unstemmed The Effect of Spectacle-Induced Low Myopia in the Non-Dominant Eye on the Binocular Defocus Curve with a Non-Diffractive Extended Vision Intraocular Lens
title_sort effect of spectacle-induced low myopia in the non-dominant eye on the binocular defocus curve with a non-diffractive extended vision intraocular lens
publisher Dove Medical Press
publishDate 2021
url https://doaj.org/article/d88dfa7abaa7486ca8cd4fd8430dddf6
work_keys_str_mv AT gundersenkg theeffectofspectacleinducedlowmyopiainthenondominanteyeonthebinoculardefocuscurvewithanondiffractiveextendedvisionintraocularlens
AT potvinr theeffectofspectacleinducedlowmyopiainthenondominanteyeonthebinoculardefocuscurvewithanondiffractiveextendedvisionintraocularlens
AT gundersenkg effectofspectacleinducedlowmyopiainthenondominanteyeonthebinoculardefocuscurvewithanondiffractiveextendedvisionintraocularlens
AT potvinr effectofspectacleinducedlowmyopiainthenondominanteyeonthebinoculardefocuscurvewithanondiffractiveextendedvisionintraocularlens
_version_ 1718379018225451008

Ejemplares similares