Dictionary

astigmia en · NOUN

Pronunciation

• /əˈstɪɡmiʌ/ (US)

Etymology

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

Meanings

1. (dated, uncountable, usually) astigmatism
   • […] and the measurement and correction of astigmia is one of the chief functions of the optometrist. 1925, Elmer LeRoy Ryer, “General Principles” (chapter 1), in Ophthalmometry, Optical Publishing Company, page 3:
   • Regular astigmia must be considered congenital, as a rule. 1910, John Elmer Weeks, A Treatise on Diseases of the Eye, page 648:
   • 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. 1898, Ophthalmic record, page 604:
   • Astigmia of the whole eye […] is the resultant of the special astigmia of all four refracting surfaces, […] 1897, American Journal of Ophthalmology, page 312:

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