astigmatism

/ษ™หˆstษชษกmษ™tษชzmฬฉ/

IPA: /AH0 S T IH1 G M AH0 T IH0 Z AH0 M/

noun
  1. 1

    A defect of a lens such that light rays coming from a point do not meet at a focal point so that the image is blurred.

  2. 2

    A disorder of the vision, usually due to a misshapen cornea, such that light does not focus correctly on the retina causing a blurred image.

Synonyms

Source: https://en.wiktionary.org/wiki/astigmatism