| Imaging quality of bifocal piggyback intraocular lens versus ReSTOR and TECNIS multifocal lenses. | |
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MedLine Citation:
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PMID: 19882520 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The imaging quality provided by a piggyback integrated by a monofocal intraocular lens (IOL) + a bifocal IOL of zero power and +3.75 diopters of addition is compared with the optics quality of a simple multifocal IOL of the same power and addition. METHODS: The imaging quality was evaluated by determining the modulation transfer function (MTF), using an artificial eye simulating in vivo conditions of the anterior chamber, including an artificial cornea and a wet cell containing physiologic solution where the IOL was positioned. The MTFs of the bifocal piggyback for near and distance vision were measured, with pupil diameters of 3 and 5 mm, and compared with the MTFs of an equivalent power of ReSTOR and TECNIS multifocal IOLs measured under the same conditions. RESULTS: The MTFs for distance and near focus of the bifocal piggyback are similar to the MTFs of the ReSTOR and TECNIS multifocal IOLs with the two diameters of pupil. A more accurate comparison, values of average modulation, and Strehl ratio show a greater similitude with ReSTOR than with TECNIS. CONCLUSIONS: The bifocal piggyback system provides a similar imaging quality to that obtained with a ReSTOR multifocal IOL and, like the ReSTOR, provides better performance in distance vision than in near vision, whereas the TECNIS multifocal IOL provides the best performance. |
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Authors:
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Jos? M Artigas; Adelina Felipe; Manuel Diaz-Llopis; Salvador Garcia-Delpech; Amparo Navea |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: European journal of ophthalmology Volume: 20 ISSN: 1120-6721 ISO Abbreviation: Eur J Ophthalmol Publication Date: 2010 Jan-Feb |
Date Detail:
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Created Date: 2010-01-04 Completed Date: 2010-04-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9110772 Medline TA: Eur J Ophthalmol Country: Italy |
Other Details:
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Languages: eng Pagination: 71-5 Citation Subset: IM |
Affiliation:
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Fundaci?n Oftalmol?gica del Mediterr?neo, Bifurcaci?n P?o Baroja-General Avil?s, Valencia, Spain. Jose.Artigas@uv.es |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Artificial Organs Depth Perception / physiology Eye Humans Lenses, Intraocular* Models, Theoretical* Optics and Photonics* Refraction, Ocular / physiology Visual Acuity / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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