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

Derived forms: astigmatisms

Type of: ametropia, condition, status

Antonym: stigmatism

Encyclopedia: Astigmatism

Nearest

asthenic type
asthenopia
asthenosphere
astheny
asthma
asthma attack
asthmatic
Asti
Asti Spumante
astigmatic
astigmatism
astigmia
astilbe
Astilbe biternata
Astilbe chinensis pumila
Astilbe japonica
astir
astomatal
astomatous
astonied
astonish