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Published on Nov 24, 2008
Contact lenses that are worn to correct astigmatism have two curves that must be held in place by a prism ballast. Discover how contact lenses for astigmatism work with tips from an optometrist in this free video on human eye problems and disorders.
Expert: Dr. James W. Kirkconnell Contact: www.bec2020.com Bio: Dr. James W. Kirkconnell graduated from the University of Houston College of Optometry in 1984. Filmmaker: Dimitri LaBarge