BACK TO astigmatism

astigmatism vs. myopia

[ uh-stig-muh-tiz-uhm ]
  1. 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.
  2. an aberration of a lens or other optical system in which the image of a point is spread out along the axis of the system.
[ mahy-oh-pee-uh ]
  1. a condition of the eye in which parallel rays are focused in front of the retina, objects being seen distinctly only when near to the eye; nearsightedness (opposed to hyperopia).
  2. lack of foresight or discernment; obtuseness.
  3. narrow-mindedness; intolerance.

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