astigmatism

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• 18. januar 2014 fra wordnet.princeton.edu

  astigmatism — navneord — engelsk

  (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people

• 26. februar 2016 fra wordnet.princeton.edu

  astigmatism — navneord — engelsk

  (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point