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Noun: astigmia  u'stig-mee-u
  1. (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
    - astigmatism
     
  2. (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
    - astigmatism

Derived forms: astigmias

Type of: ametropia, condition, status

Encyclopedia: Astigmia

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