Simple Hartmann test data interpretation for ophthalmic lenses

This article describes a simple Hartmann test data interpretation that can be used to evaluate the performance of ophthalmic lenses. Considering each spot of the Hartmann pattern such as a single test ray, using simple ray tracing analysis, it is possible to calculate the power values from the lens...

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Bibliographic Details
Published in:Review of scientific instruments 2006-04, Vol.77 (4), p.043102-043102-5
Main Authors: Salas-Peimbert, Didia Patricia, Trujillo-Schiaffino, Gerardo, González-Silva, Jorge Alberto, Almazán-Cuellar, Saúl, Malacara-Doblado, Daniel
Format: Article
Language:English
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Summary:This article describes a simple Hartmann test data interpretation that can be used to evaluate the performance of ophthalmic lenses. Considering each spot of the Hartmann pattern such as a single test ray, using simple ray tracing analysis, it is possible to calculate the power values from the lens under test at the point corresponding with each spot. The values obtained by this procedure are used to plot the power distribution map of the entire lens. We present the results obtained applying this method with single vision, bifocal, and progressive lenses.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.2188352