What is the meaning of astigmatism?

noun

  • Ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people.
  • Optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point. (.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). astigmatism. Retrieved September 20, 2026, from http://smartdefine.org/astigmatism/definitions/1244945
ChicagoWordNet. 2010. "astigmatism" http://smartdefine.org/astigmatism/definitions/1244945 (accessed September 20, 2026).
HarvardWordNet 2010, astigmatism, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/astigmatism/definitions/1244945>.
MLAWordNet. "astigmatism" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/astigmatism/definitions/1244945>
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