astigmia

English

Etymology

From a- (negative prefix) + Ancient Greek στίγμα (stígma, “mark, point”) + -ia.

Pronunciation
  • (US) IPA(key): /əˈstɪɡmiʌ/
  • Hyphenation: a‧stig‧mi‧a

Noun

astigmia (usually uncountable, plural astigmias)

  1. (dated) astigmatism
    • 1925, Elmer LeRoy Ryer, “General Principles” (chapter 1), in Ophthalmometry‎, Optical Publishing Company, page 3:
      […] and the measurement and correction of astigmia is one of the chief functions of the optometrist.
    • 1897, American Journal of Ophthalmology, page 312:
      Astigmia of the whole eye […] is the resultant of the special astigmia of all four refracting surfaces, […]
    • 1910, John Elmer Weeks, A Treatise on Diseases of the Eye, page 648:
      Regular astigmia must be considered congenital, as a rule.
    • 1898, Ophthalmic record, page 604:
      When the corneal astigmia is direct, and about 0.75 D., we may expect to find an almost total absence of astigmia by subjective examination.
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