Visual performance of the Tecnis one-piece lens ZCB00

Sherein S Wahba, Riad F Riad, Fathy F Morkos, Abdallah K Hassouna, Maged M RoshdyNational Eye Hospital and Ain Shams University, Cairo, EgyptSynopsis: The aspheric, one-piece design of the Tecnis&reg; ZCB00 intraocular lens provided higher mesopic contrast sensitivity and relatively constant...

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Autores principales:	Wahba SS, Riad RF, Morkos FF, Hassouna AK, Roshdy MM
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/6ae91106ab974429a1d6cba59b7e0991
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spelling	oai:doaj.org-article:6ae91106ab974429a1d6cba59b7e09912021-12-02T02:32:19ZVisual performance of the Tecnis one-piece lens ZCB001177-54671177-5483https://doaj.org/article/6ae91106ab974429a1d6cba59b7e09912011-12-01T00:00:00Zhttp://www.dovepress.com/visual-performance-of-the-tecnis-one-piece-lens-zcb00-a8948https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Sherein S Wahba, Riad F Riad, Fathy F Morkos, Abdallah K Hassouna, Maged M RoshdyNational Eye Hospital and Ain Shams University, Cairo, EgyptSynopsis: The aspheric, one-piece design of the Tecnis&reg; ZCB00 intraocular lens provided higher mesopic contrast sensitivity and relatively constant refraction at different pupil sizes compared to the Sensar&reg; AR40e.Purpose: Comparing the impact on functional vision of the aspheric Tecnis&reg; ZCB00 one-piece lens compared to the spherical Sensar&reg; AR40e three-piece lens.Setting: National Eye Hospital, Cairo, Egypt.Methods: In this prospective study, we implanted 32 Tecnis ZCB00 (Abbott Medical Optics, Santa Ana, CA) and 30 Sensar AR40e (Pharamacia and Upjohn LLC, North Peapack, NJ) lenses. Twenty-three patients in the ZCB00 group and 13 patients in the AR40e group provided reliable, reproducible data, and were therefore included in the statistical analysis. After 8 weeks, we measured photopic contrast sensitivity (PCS) at 85 cd/m&sup2; and mesopic contrast sensitivity (MCS) at 5 cd/m&sup2;. Uncorrected and best-corrected visual acuity were measured. Myopic shift was analyzed by comparing the manifest refraction spherical equivalent at 3 days and 8 weeks after surgery in the normal and dilated pupil.Results: The Tecnis ZCB00 group showed significantly better MCS than the Sensar AR40e group at a spatial frequency of six cycles per degree (cpd) (P = 0.037), but not at 3, 12, or 18 cpd (P = 0.299, P = 0.226, and P = 0.396, respectively). There were no significant differences between groups in corrected distance visual acuity (P = 0.175) or PCS at 3, 6, 12, or 18 cpd spatial frequencies (P = 0.440, P = 0.176, P = 0.365, and P = 0.251, respectively). The ZCB00 group showed less myopic shift in normal and dilated pupils between 3 days and 8 weeks after surgery compared to the AR40e group, but this difference was not significant.Conclusion: The Tecnis one-piece ZCB00 provided higher MCS at moderate spatial frequency than the three-piece Sensar AR40e, and was associated with relatively constant refraction at different pupil sizes.Keywords: Tecnis ZCB00, Sensar AR40e, contrast sensitivity, myopic shiftWahba SSRiad RFMorkos FFHassouna AKRoshdy MMDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2011, Iss default, Pp 1803-1808 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Wahba SS Riad RF Morkos FF Hassouna AK Roshdy MM Visual performance of the Tecnis one-piece lens ZCB00
description	Sherein S Wahba, Riad F Riad, Fathy F Morkos, Abdallah K Hassouna, Maged M RoshdyNational Eye Hospital and Ain Shams University, Cairo, EgyptSynopsis: The aspheric, one-piece design of the Tecnis&reg; ZCB00 intraocular lens provided higher mesopic contrast sensitivity and relatively constant refraction at different pupil sizes compared to the Sensar&reg; AR40e.Purpose: Comparing the impact on functional vision of the aspheric Tecnis&reg; ZCB00 one-piece lens compared to the spherical Sensar&reg; AR40e three-piece lens.Setting: National Eye Hospital, Cairo, Egypt.Methods: In this prospective study, we implanted 32 Tecnis ZCB00 (Abbott Medical Optics, Santa Ana, CA) and 30 Sensar AR40e (Pharamacia and Upjohn LLC, North Peapack, NJ) lenses. Twenty-three patients in the ZCB00 group and 13 patients in the AR40e group provided reliable, reproducible data, and were therefore included in the statistical analysis. After 8 weeks, we measured photopic contrast sensitivity (PCS) at 85 cd/m&sup2; and mesopic contrast sensitivity (MCS) at 5 cd/m&sup2;. Uncorrected and best-corrected visual acuity were measured. Myopic shift was analyzed by comparing the manifest refraction spherical equivalent at 3 days and 8 weeks after surgery in the normal and dilated pupil.Results: The Tecnis ZCB00 group showed significantly better MCS than the Sensar AR40e group at a spatial frequency of six cycles per degree (cpd) (P = 0.037), but not at 3, 12, or 18 cpd (P = 0.299, P = 0.226, and P = 0.396, respectively). There were no significant differences between groups in corrected distance visual acuity (P = 0.175) or PCS at 3, 6, 12, or 18 cpd spatial frequencies (P = 0.440, P = 0.176, P = 0.365, and P = 0.251, respectively). The ZCB00 group showed less myopic shift in normal and dilated pupils between 3 days and 8 weeks after surgery compared to the AR40e group, but this difference was not significant.Conclusion: The Tecnis one-piece ZCB00 provided higher MCS at moderate spatial frequency than the three-piece Sensar AR40e, and was associated with relatively constant refraction at different pupil sizes.Keywords: Tecnis ZCB00, Sensar AR40e, contrast sensitivity, myopic shift
format	article
author	Wahba SS Riad RF Morkos FF Hassouna AK Roshdy MM
author_facet	Wahba SS Riad RF Morkos FF Hassouna AK Roshdy MM
author_sort	Wahba SS
title	Visual performance of the Tecnis one-piece lens ZCB00
title_short	Visual performance of the Tecnis one-piece lens ZCB00
title_full	Visual performance of the Tecnis one-piece lens ZCB00
title_fullStr	Visual performance of the Tecnis one-piece lens ZCB00
title_full_unstemmed	Visual performance of the Tecnis one-piece lens ZCB00
title_sort	visual performance of the tecnis one-piece lens zcb00
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/6ae91106ab974429a1d6cba59b7e0991
work_keys_str_mv	AT wahbass visualperformanceofthetecnisonepiecelenszcb00 AT riadrf visualperformanceofthetecnisonepiecelenszcb00 AT morkosff visualperformanceofthetecnisonepiecelenszcb00 AT hassounaak visualperformanceofthetecnisonepiecelenszcb00 AT roshdymm visualperformanceofthetecnisonepiecelenszcb00
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Visual performance of the Tecnis one-piece lens ZCB00

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