Escaf M; Izquierdo Jr L; Mendoza J; Miranda M Instituto de Ojos Oftalmo Salud Lima, Peru THERE IS NO FINANCIAL INTEREST IN THIS POSTER.

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Escaf M; Izquierdo Jr L; Mendoza J; Miranda M Instituto de Ojos Oftalmo Salud Lima, Peru THERE IS NO FINANCIAL INTEREST IN THIS POSTER

Objectives To compare the measurements between dioptrical power maps (curvature) and the anterior and posterior elevation maps in patients with keratoconic eyes on the central corneal and apex.

Materials and Methods Retrospective study on 50 eyes Previous diagnosis of keratoconus using Pentacam. Evaluation of the dioptric power values on the central cornea and apex. Comparison between these values and the corresponding values for the same points on elevation maps (anterior and posterior). Statistic evaluation done with SPSS 15

Results Dipotric Power Vs Anetrior and Posterior Elevation K DsEa DsEp Ds < ± ± ± ± ± ± ± ± ± ± ± ± >67.45± ± ±53.47 EA= anterior central elevation EP= posterior central elevation

Results Relation between Corneal Elevation and Dioptric Values Dioptric Value Elevation values Eac= anterior central elevation Epc= posterior central elevation Eak= anterior elevation in Highest dioptrical point Eak= posterior elevation in highest dioptrical point

Results ELEVATION MEAN VALUESSDSig. Eac Eak Epc Epk No significant difference between Eac vs Eak (p=0.500) No significant difference between Epc vs Epk (p=0.851

Results ANTERIOR AND POSTERIOR ELEVATION MICRONS Eac= anterior central elevation Epc= posterior central elevation Eak= anterior elevation in Highest dioptrical point Eak= posterior elevation in highest dioptrical point

Conclusions We found a significant relation (p:> 0.005) between de increasing dipotrical power and the rise on the elevation maps expressed in microns. There's a relation in the changes on the anterior and posterior elevation maps in keratoconic eyes. At the same time we can assure that these maps are another safe tool for an easier diagnosis of keratoconus.