Standardized analyses of correction of astigmatism by laser systems that reshape the cornea
- PMID:16447941
- DOI: 10.3928/1081-597X-20060101-16
Standardized analyses of correction of astigmatism by laser systems that reshape the cornea
Abstract
Purpose: To develop a minimum set of analyses and a format for presentation of outcomes of astigmatism correction by laser systems that reshape the cornea.
Methods: An Astigmatism Project group was created under the auspices of the American National Standards Institute (ANSI) Z80.11 Working Group on Laser Systems for Corneal Reshaping. The Astigmatism Project Group was made up of experts in astigmatism analyses from academia, government, and industry. An extensive literature review was conducted to identify all currently available methodologies for the evaluation of astigmatic outcomes. Project Group members discussed the utility of each method and its specific parameters for evaluating the effectiveness of astigmatism-correcting devices. They gave consideration to unique terminology and analyses required for evaluation of correction of astigmatism by laser systems that reshape the comea.
Results: The Project Group defined a comprehensive list of analysis variables needed for the evaluation of astigmatism-correcting devices and generated a mathematical definition for each term. They developed a minimum set of analyses needed for evaluation of astigmatism treatments by laser systems that reshape the cornea. They established methods for calculating the refractive error analysis variables and constructed recommended table and graph formats for data presentation.
Conclusions: This article contains the recommendations of the Astigmatism Project Group of the American National Standards Institute. We propose it as a standard reference for astigmatic refractive error analyses for the evaluation of safety and effectiveness of laser systems that reshape the cornea.
Comment in
- Terms used for the analysis of astigmatism.Alpins N.Alpins N.J Refract Surg. 2006 Jun;22(6):528; author reply 528-9; discussion 529. doi: 10.3928/1081-597X-20060601-01.J Refract Surg. 2006.PMID:16805113No abstract available.
- Standardized analyses of correction of astigmatism.Lenton L.Lenton L.J Refract Surg. 2006 Sep;22(7):636-8; author reply 638. doi: 10.3928/1081-597X-20060901-02.J Refract Surg. 2006.PMID:16995543No abstract available.
- Special articles and peer review.Masket S.Masket S.J Refract Surg. 2007 Feb;23(2):115; author reply 115. doi: 10.3928/1081-597X-20070201-01.J Refract Surg. 2007.PMID:17326349No abstract available.
- More on astigmatism analysis.Goggin M.Goggin M.J Refract Surg. 2007 May;23(5):430; author reply 430-1. doi: 10.3928/1081-597X-20070501-01.J Refract Surg. 2007.PMID:17523500No abstract available.
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