astigmatism vs. myopia
noun
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Also called astigmia. Ophthalmology. 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.
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Optics. 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.
noun
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Ophthalmology. 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 (hyperopia ).
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lack of foresight or discernment; obtuseness.
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narrow-mindedness; intolerance.
