| Effect of square-edged intraocular lenses on neodymium:YAG laser capsulotomy rates in the United States. | |
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MedLine Citation:
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PMID: 17964395 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To model the effect of the introduction of square-edged intraocular lenses (IOLs) in the United States on neodymium:YAG (Nd:YAG) laser capsulotomy rates and to compare the model with actual capsulotomy rates. SETTING: Ophthalmology Department, St. Thomas' Hospital, London, United Kingdom, and Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA. METHODS: The actual numbers of cataract surgeries and Nd:YAG laser capsulotomies performed in the U.S. were obtained from Medicare claims data for 1993 to 2003. The percentage market share of square-edged IOLs was obtained, and numbers of square-edged and round-edged IOLs implanted were calculated. Predicted laser capsulotomy rates were modeled on published postmortem and clinical data and compared with actual capsulotomy rates. RESULTS: Between 1993 and 2003, the number of cataract surgeries and Nd:YAG laser capsulotomies reimbursed by Medicare rose by 67.4% and 18.9%, respectively. After the introduction of square-edged IOLs in 1995, the market share grew to 48.5% in 2003. The total number of Nd:YAG capsulotomies reimbursed by Medicare in 2003 exceeded the number of capsulotomies predicted by the model by at least 23.9%. The estimated cost generated by the discrepancy between predicted and actual laser capsulotomies in 2003 was at least US $30 million. CONCLUSIONS: After the introduction of square-edged IOLs, Nd:YAG laser capsulotomy rates decreased, but not by as much as predicted. The additional cost to the Medicare system was more than US $30 million higher than the model predicted. |
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Authors:
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Georgia Cleary; David J Spalton; Douglas D Koch |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of cataract and refractive surgery Volume: 33 ISSN: 0886-3350 ISO Abbreviation: J Cataract Refract Surg Publication Date: 2007 Nov |
Date Detail:
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Created Date: 2007-10-29 Completed Date: 2007-12-20 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: 1899-906 Citation Subset: IM |
Affiliation:
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Ophthalmology Department, St. Thomas' Hospital, London, United Kingdom. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acrylates Aged Cataract / therapy Cataract Extraction / statistics & numerical data* Humans Insurance Claim Reporting / statistics & numerical data Laser Therapy / statistics & numerical data* Lens Capsule, Crystalline / surgery* Lens Implantation, Intraocular Lenses, Intraocular* Medicare / statistics & numerical data* Postoperative Complications* Prosthesis Design Reoperation United States / epidemiology |
| Chemical | |
Reg. No./Substance:
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0/Acrylates; 79-10-7/acrylic acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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