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Astigmatism   Listen
noun
Astigmatism  n.  (Med. & Opt.) A defect of the eye or of a lens, in consequence of which the rays derived from one point are not brought to a single focal point, thus causing imperfect images or indistinctness of vision. Note: The term is applied especially to the defect causing images of lines having a certain direction to be indistinct, or imperfectly seen, while those of lines transverse to the former are distinct, or clearly seen.






Collaborative International Dictionary of English 0.48








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"Astigmatism" Quotes from Famous Books



... mother was a white rabbit, then your male children would be"—he raised all the other fingers and paused as though taken aback by the size of the family—"would be blue guinea-pigs, with a tendency to club-foot and astigmatism, but your female children might only be rather clumsy tangoists with a weakness for cutting their poor relations. That's all I remember, but I do know that because ...
— O Henry Memorial Award Prize Stories of 1919 • Various

... in a confidential tone, "I've heard or read somewhere that there's just a doubt whether he distorted people on purpose or because there was something wrong with his eyes. If I thought it was astigmatism I would insist on taking Muriel to an oculist. I ...
— Punch, or the London Charivari, Vol. 159, December 15, 1920 • Various

... degree of defects of the eyes it is necessary to try out the eyes by using a trial spectacle frame and inserting detached lenses before the right eye and the left eye alternately. One of the most common forms of defective vision is astigmatism. A chart has been designed with a series of circles and straight lines radiating from the center. If the subject is astigmatic he will see some of the straight lines distinctly while others will be blurred. For instance, one or two of the vertical lines may appear very black ...
— Initiative Psychic Energy • Warren Hilton

... vest and go through gymnasium stunts with the boy. The mother can do the same for the girl. It is often the case that round-shouldered children are near sighted. The child really has to stoop to see things. When a child holds his head to one side constantly on looking at objects, astigmatism, an error of eyesight, is usually indicated. An eye specialist should be consulted, the eyes examined, and properly fitted ...
— The Mother and Her Child • William S. Sadler



Words linked to "Astigmatism" :   status, keratectasia, condition, astigmia, stigmatism, keratoconus



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