Meaning Of The Word Astigmatism

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  2. A Words Definitions
  3. Section A-388
  4. Astigmatism

What's the definition of Astigmatism? Find Astigmatism meanings, definitions and more at the Real Dictionary online.

Astigmatism Meaning

Astigmatism Definition
Astigmatism Definition

What's The Definition Of Astigmatism?

astigmatism
uncountable noun: If someone has astigmatism, the front of their eye has a slightly irregular shape, so they cannot see properly.

astigmatism in American English
an irregularity in the curvature of a lens, including the lens of the eye, so that light rays from an object do not meet in a single focal point, resulting in an indistinct or distorted image
noun: a refractive error of the eye in which parallel rays of light from an external source do not converge on a single focal point on the retina

astigmatism in British English
noun: a defect of a lens resulting in the formation of distorted images; caused by the curvature of the lens being different in different planes

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