BACK TO astigmatism
astigmatism vs. myopia
[ uh-stig-muh-tiz-uhm ]
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.
- 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 ]
noun
- 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).
- lack of foresight or discernment; obtuseness.
- narrow-mindedness; intolerance.