Abstract

SANCHEZ BRAVO, Justo et al. Pentacam configuration in refractive surgery screening. Rev Cubana Oftalmol [online]. 2013, vol.26, n.3, pp.417-426. ISSN 0864-2176.

Objective: To determine the consistency of manual Pentacam configuration in refractive surgery screening. Methods: Observational and descriptive study performed at "Ramon Pando Ferrer" Cuban Institute of Ophthalmology during 2012. The sample was made up of 104 images of eyes examined by Pentacam equipment, which had met the selection criteria. The analyzed variables were diameter for best fit sphere calculation, anterior elevation, posterior elevation and the classification of corneal ectasias based on anterior and posterior elevations was used in order to group the sample. Results: In the sample, 45.2% and 54.8% used a diameter lower than 8mm and over 8mm for the calculation of the best fit sphere, respectively. The mean comparison between the two groups was statistically significant. According to the ectasia classification based on anterior and posterior elevations, with the over 8mm diameter, the normal exams doubled in some percentage and the pathological ones decreased by 25%, respectively. There are differences between the means and the standard deviations in evolutional exams performed in the same eye, considering the automatic and the manual configurations. Conclusions: Manual configuration of Pentacam allows attaining consistency in the refractive surgery screening.

Keywords : Pentacam; BFS; anterior elevation; posterior elevation.

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