Unequal curvature of the refractive surfaces of the eye. Thus a point source of light cannot be brought to a point focus on the retina but is spread over a more or less diffuse area. This results from the radius of curvature in one plane being longer or shorter than the radius at right angles to it. (Dorland, 27th ed). (Experimental Factor Ontology, EFO_0004222)
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5 genes associated with the trait Astigmatism in GWAS and other genetic association datasets from the dbGAP Gene-Trait Associations dataset.
