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Archivos de la Sociedad Española de Oftalmología
Print version ISSN 0365-6691
Abstract
MESA-GUTIERREZ, J.C. and RUIZ-LAPUENTE, C.. Intraocular lens power calculation after corneal photorefractive surgery: Literature review. Arch Soc Esp Oftalmol [online]. 2009, vol.84, n.6, pp.283-292. ISSN 0365-6691.
Objective: Revision of methods for estimating corneal power (Kpost) and effective lens position (ELP) for cataract surgery after corneal refractive surgery. Methods: Review of medical literature. Results: To calculate the intraocular lens that achieves emetropia after corneal refractive surgery it is necessary to correct the Kpost and to estimate the effective lens position again correcting it. There are different formulae depending on the available information. Ideally, we need pre (Kpre) and post-treatment keratometry record (Kpost) and pre (Rpre) and post (Rpost) refraction. In this way, we can use the Aramberris double-K method in the formula for calculating intraocular lens power. Conclusions: Previously to keratorefractive procedure is advisable to have pre-treatment refraction and keratometry (K and method) registered: Kpre value is critical to calculate the ELP.
Keywords : Intraocular lens; refractive surgery; corneal refractive power; cataract surgery; doble-K correction; effective lens position.
