| Colorimetric comparison of light-filtering intraocular lenses and human crystalline lenses at various ages. | |
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MedLine Citation:
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PMID: 21420602 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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PURPOSE: To perform colorimetric characterization of 2 blue light-filtering intraocular lens (IOL) models and an IOL that filters ultraviolet-violet (UV-v) light and compare the charactizations with those of a standard UV light-filtering IOL and the human crystalline lens at various ages. SETTING: Department of Clinical Physiopathology, University of Florence, and National Institute of Applied Optics, CNR, Florence, Italy. DESIGN: Experimental study. METHODS: Three IOLs of each model with different dioptric powers (16.0, 21.0, and 26.0 diopters) were analyzed. The colorimetric coordinates of the IOLs were calculated by measuring their transmission spectra using a microspectroscopy technique. Subsequently, a parameter (ΔE) that was proportional to the perceived color differences was defined. The results of the IOLs and of the human crystalline lens at different ages (4, 22, 41, 53, and 72 years; values taken from the literature) were compared. The colorimetric analysis was performed using Commission Internationale de l'Éclairage standards. RESULTS: The maximum ΔE value was with the standard UV light-filtering IOL at any crystalline lens age and was greatest with a 72-year-old human lens. The minimum ΔE value was obtained for both blue light-filtering IOLs with middle-aged human lenses. CONCLUSIONS: None of the analyzed IOLs had the same colorimetric performance of the human crystalline lens. The 2 blue light-filtering IOLs best reproduced yellowing of the human lens at 40 to 50 years of age. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned. |
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Authors:
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Giovanni Romano; Luca Mercatelli; Franco Fusi; Andrea Guasti; Eleonora Favuzza; Monica Monici; Rita Mencucci |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of cataract and refractive surgery Volume: 37 ISSN: 1873-4502 ISO Abbreviation: J Cataract Refract Surg Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-03-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8604171 Medline TA: J Cataract Refract Surg Country: United States |
Other Details:
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Languages: eng Pagination: 758-62 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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From the Departments of Clinical Physiopathology (Romano, Fusi), Oto-Neuro-Ophthalmological Surgical Sciences-Eye Clinic (Mencucci), and ASA Campus Joint Laboratory, ASA Research Division, Department of Clinical Physiopathology (Monici), University of Florence; the National Institute of Applied Optics (Mercatelli), CNR; and the Department of Sanitary Physics, Careggi University Hospital (Guasti), Florence, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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