| Object surface for applying a modified hartmann test to measure corneal topography. | |
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MedLine Citation:
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PMID: 18364869 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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A modified Hartmann test is proposed for measuring corneal topography. The plane screen with holes used in the typical Hartmann test is replaced with a curved object surface. This object surface yields a plane image for a spherical mirror surface. We show that the object surface is an oval of revolution that can be modeled by an ellipsoid. The plane image will be formed by a square array of circular spots, all with the same diameter. To obtain the square array in the image, we calculated the spatial distribution of the spots on the object surface. |
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Authors:
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Y Mejía-Barbosa; D Malacara-Hernández |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Applied optics Volume: 40 ISSN: 0003-6935 ISO Abbreviation: Appl Opt Publication Date: 2001 Nov |
Date Detail:
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Created Date: 2008-03-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0247660 Medline TA: Appl Opt Country: United States |
Other Details:
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Languages: eng Pagination: 5778-86 Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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