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Visual performance of the Tecnis one-piece lens ZCB00
SYNOPSIS: The aspheric, one-piece design of the Tecnis(®) ZCB00 intraocular lens provided higher mesopic contrast sensitivity and relatively constant refraction at different pupil sizes compared to the Sensar(®) AR40e. PURPOSE: Comparing the impact on functional vision of the aspheric Tecnis(®) ZCB0...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dove Medical Press
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3258090/ https://www.ncbi.nlm.nih.gov/pubmed/22267915 http://dx.doi.org/10.2147/OPTH.S27324 |
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author | Wahba, Sherein S Riad, Riad F Morkos, Fathy F Hassouna, Abdallah K Roshdy, Maged M |
author_facet | Wahba, Sherein S Riad, Riad F Morkos, Fathy F Hassouna, Abdallah K Roshdy, Maged M |
author_sort | Wahba, Sherein S |
collection | PubMed |
description | SYNOPSIS: The aspheric, one-piece design of the Tecnis(®) ZCB00 intraocular lens provided higher mesopic contrast sensitivity and relatively constant refraction at different pupil sizes compared to the Sensar(®) AR40e. PURPOSE: Comparing the impact on functional vision of the aspheric Tecnis(®) ZCB00 one-piece lens compared to the spherical Sensar(®) 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(2) and mesopic contrast sensitivity (MCS) at 5 cd/m(2). 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. |
format | Online Article Text |
id | pubmed-3258090 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Dove Medical Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-32580902012-01-20 Visual performance of the Tecnis one-piece lens ZCB00 Wahba, Sherein S Riad, Riad F Morkos, Fathy F Hassouna, Abdallah K Roshdy, Maged M Clin Ophthalmol Original Research SYNOPSIS: The aspheric, one-piece design of the Tecnis(®) ZCB00 intraocular lens provided higher mesopic contrast sensitivity and relatively constant refraction at different pupil sizes compared to the Sensar(®) AR40e. PURPOSE: Comparing the impact on functional vision of the aspheric Tecnis(®) ZCB00 one-piece lens compared to the spherical Sensar(®) 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(2) and mesopic contrast sensitivity (MCS) at 5 cd/m(2). 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. Dove Medical Press 2011 2011-12-23 /pmc/articles/PMC3258090/ /pubmed/22267915 http://dx.doi.org/10.2147/OPTH.S27324 Text en © 2011 Wahba et al, publisher and licensee Dove Medical Press Ltd. This is an Open Access article which permits unrestricted noncommercial use, provided the original work is properly cited. |
spellingShingle | Original Research Wahba, Sherein S Riad, Riad F Morkos, Fathy F Hassouna, Abdallah K Roshdy, Maged M Visual performance of the Tecnis one-piece lens ZCB00 |
title | 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_short | Visual performance of the Tecnis one-piece lens ZCB00 |
title_sort | visual performance of the tecnis one-piece lens zcb00 |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3258090/ https://www.ncbi.nlm.nih.gov/pubmed/22267915 http://dx.doi.org/10.2147/OPTH.S27324 |
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