[Statistical analysis of the anterior corneal curvature and its refractive power and astigmatism before and after cataract extraction].
D000368:Aged; D001251:Astigmatism / Q000209:etiology*; D002387:Cataract Extraction / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D012029:Refraction, Ocular