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Br J Ophthalmol. 1986 February; 70(2): 152–154.
PMCID: PMC1040942

On the calculation of power from curvature of the cornea.

Abstract

The theoretical basis for the calculation of corneal refractive power from anterior curvature is considered. It is shown that the power can be calculated with sufficient accuracy from one simple formula provided the refractive index of the 'cornea' is 1.3315. It is suggested that keratometer readings should be calibrated with this value in order to increase the accuracy in intraocular lens calculation.

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