A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia

Gregory D Parkhurst1,2 1Refractive Surgery Center, Carl R Darnall Army Medical Center, Fort Hood, 2Parkhurst NuVision, San Antonio, TX, USA Purpose: The aim of this study was to evaluate and compare night vision and low-luminance contrast sensitivity (CS) in patients undergoing implantation of pha...

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Autor principal:	Parkhurst GD
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	Implantable Collamer lens LASIK Rabin Super Vision Test night vision low luminance contrast sensitivity Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/a685084ac16a45e4aab028fc859bbbe2
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spelling	oai:doaj.org-article:a685084ac16a45e4aab028fc859bbbe22021-12-02T02:52:56ZA prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia1177-5483https://doaj.org/article/a685084ac16a45e4aab028fc859bbbe22016-06-01T00:00:00Zhttps://www.dovepress.com/a-prospective-comparison-of-phakic-collamer-lenses-and-wavefront-optim-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Gregory D Parkhurst1,2 1Refractive Surgery Center, Carl R Darnall Army Medical Center, Fort Hood, 2Parkhurst NuVision, San Antonio, TX, USA Purpose: The aim of this study was to evaluate and compare night vision and low-luminance contrast sensitivity (CS) in patients undergoing implantation of phakic collamer lenses or wavefront-optimized laser-assisted in situ keratomileusis (LASIK).Patients and methods: This is a nonrandomized, prospective study, in which 48 military personnel were recruited. Rabin Super Vision Test was used to compare the visual acuity and CS of Visian implantable collamer lens (ICL) and LASIK groups under normal and low light conditions, using a filter for simulated vision through night vision goggles.Results: Preoperative mean spherical equivalent was –6.10 D in the ICL group and –6.04 D in the LASIK group (P=0.863). Three months postoperatively, super vision acuity (SVa), super vision acuity with (low-luminance) goggles (SVaG), super vision contrast (SVc), and super vision contrast with (low luminance) goggles (SVcG) significantly improved in the ICL and LASIK groups (P<0.001). Mean improvement in SVaG at 3 months postoperatively was statistically significantly greater in the ICL group than in the LASIK group (mean change [logarithm of the minimum angle of resolution, LogMAR]: ICL =-0.134, LASIK =-0.085; P=0.032). Mean improvements in SVc and SVcG were also statistically significantly greater in the ICL group than in the LASIK group (SVc mean change [logarithm of the CS, LogCS]: ICL =0.356, LASIK =0.209; P=0.018 and SVcG mean change [LogCS]: ICL =0.390, LASIK =0.259; P=0.024). Mean improvement in SVa at 3 months was comparable in both groups (P=0.154).Conclusion: Simulated night vision improved with both ICL implantation and wavefront-optimized LASIK, but improvements were significantly greater with ICLs. These differences may be important in a military setting and may also affect satisfaction with civilian vision correction. Keywords: implantable collamer lens, LASIK, Rabin Super Vision Test, night vision, low-luminance contrast sensitivityParkhurst GDDove Medical PressarticleImplantable Collamer lensLASIKRabin Super Vision Testnight visionlow luminance contrast sensitivityOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2016, Iss Issue 1, Pp 1209-1215 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Implantable Collamer lens LASIK Rabin Super Vision Test night vision low luminance contrast sensitivity Ophthalmology RE1-994
spellingShingle	Implantable Collamer lens LASIK Rabin Super Vision Test night vision low luminance contrast sensitivity Ophthalmology RE1-994 Parkhurst GD A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia
description	Gregory D Parkhurst1,2 1Refractive Surgery Center, Carl R Darnall Army Medical Center, Fort Hood, 2Parkhurst NuVision, San Antonio, TX, USA Purpose: The aim of this study was to evaluate and compare night vision and low-luminance contrast sensitivity (CS) in patients undergoing implantation of phakic collamer lenses or wavefront-optimized laser-assisted in situ keratomileusis (LASIK).Patients and methods: This is a nonrandomized, prospective study, in which 48 military personnel were recruited. Rabin Super Vision Test was used to compare the visual acuity and CS of Visian implantable collamer lens (ICL) and LASIK groups under normal and low light conditions, using a filter for simulated vision through night vision goggles.Results: Preoperative mean spherical equivalent was –6.10 D in the ICL group and –6.04 D in the LASIK group (P=0.863). Three months postoperatively, super vision acuity (SVa), super vision acuity with (low-luminance) goggles (SVaG), super vision contrast (SVc), and super vision contrast with (low luminance) goggles (SVcG) significantly improved in the ICL and LASIK groups (P<0.001). Mean improvement in SVaG at 3 months postoperatively was statistically significantly greater in the ICL group than in the LASIK group (mean change [logarithm of the minimum angle of resolution, LogMAR]: ICL =-0.134, LASIK =-0.085; P=0.032). Mean improvements in SVc and SVcG were also statistically significantly greater in the ICL group than in the LASIK group (SVc mean change [logarithm of the CS, LogCS]: ICL =0.356, LASIK =0.209; P=0.018 and SVcG mean change [LogCS]: ICL =0.390, LASIK =0.259; P=0.024). Mean improvement in SVa at 3 months was comparable in both groups (P=0.154).Conclusion: Simulated night vision improved with both ICL implantation and wavefront-optimized LASIK, but improvements were significantly greater with ICLs. These differences may be important in a military setting and may also affect satisfaction with civilian vision correction. Keywords: implantable collamer lens, LASIK, Rabin Super Vision Test, night vision, low-luminance contrast sensitivity
format	article
author	Parkhurst GD
author_facet	Parkhurst GD
author_sort	Parkhurst GD
title	A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia
title_short	A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia
title_full	A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia
title_fullStr	A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia
title_full_unstemmed	A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia
title_sort	prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/a685084ac16a45e4aab028fc859bbbe2
work_keys_str_mv	AT parkhurstgd aprospectivecomparisonofphakiccollamerlensesandwavefrontoptimizedlaserassistedinsitukeratomileusisforcorrectionofmyopia AT parkhurstgd prospectivecomparisonofphakiccollamerlensesandwavefrontoptimizedlaserassistedinsitukeratomileusisforcorrectionofmyopia
_version_	1718402115700785152

A prospective comparison of phakic collamer lenses and wavefront-optimized laser-assisted in situ keratomileusis for correction of myopia

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