Keratometry measures the corneal curvature.  It is performed for similar reasons as topography, but rather than mapping the entire corneal surface, two curves are measured – the steepest and the flattest.  These measurements give the doctor information about the cornea’s curvature, focusing power, and whether astigmatism is present. 

St. Luke's Cataract & Laser Institute provides this on-line information for educational and communication purposes only and it should not be construed as personal medical advice.  Information published on this St. Luke's website is not intended to replace, supplant, or augment a consultation with an eye care professional regarding the viewer/user's own medical care.  St. Luke's disclaims any and all liability for injury or other damages that could result from use of the information obtained from this site.

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