TY - JOUR T1 - On the calculation of power from curvature of the cornea. JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 152 LP - 154 DO - 10.1136/bjo.70.2.152 VL - 70 IS - 2 AU - T Olsen Y1 - 1986/02/01 UR - http://bjo.bmj.com/content/70/2/152.abstract N2 - 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. ER -