Abstract

CARDENAS DIAZ, Taimí et al. Postsurgical photoablative corneal power in myopic patients by using Scheimpflug Pentacam system vs. Maloney method. Rev Cubana Oftalmol [online]. 2014, vol.27, n.1, pp. 51-61. ISSN 0864-2176.

Objective: to compare the keratometries taken by Pentacam system in miopic patients operated on with excimer laser refractive surgery and those of Maloney method in the "Ramón Pando Ferrer" Cuban Institute of Ophthalmology from January to March of 2013. Methods: aprospective study was conducted in 50 eyes from 26 patients operated on with excimer laser. The average keratometry was estimated by Maloney´s method and then compared with the values provided by the Pentacam system in terms of total central keratometric value and equivalent K-reading power of color maps, as well as true net power (total keratometric value at 3,0 mm) and equivalent keratometric readings at different diameters of Holladay Report program. Preoperative average keratometries in the medical history were compared with those estimated by Pentacam. Paired t test and 95 % significance level were used for the statistical analysis. Results: there were no significant statistical differences among the keratometries taken by Maloney method, the equivalent K-reading power and the equivalent keratometric readings at different diameters, being that of 3 mm the more accurate. The rest of the measurements differed in a significant way. There were no differences among the preoperative keratometries. Conclusion: Pentacam equipment provides corneal powers that did not statistically differ from the ones obtained by Maloney method in myopic eyes with previous excimer laser surgery.

Keywords : keratometry; refractive surgery; excimer laser; myopia.

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