Parámetros refractivos y topográficos del módulo Belin/Ambrósio en pacientes con defectos refractivos de la Clínica Latino, Cuenca 2017-2021

Abstract

Background: Ectasia is an alteration of corneal curvature and thickness that can have important repercussions on visual acuity. Keratoconus is the most common type of ectasia. Objective: to describe the refractive and topographical parameters of the Belin/Ambrosio module in patients with refractive defects at the Clínica Latino, Cuenca-Ecuador, in the period 2017-2021. Methods: a descriptive, cross-sectional study was carried out. We worked with a database made up of anonymous cases of patients with refractive defects treated at the ophthalmological consultation of the Latino Clinic during the period January 2017 - June 2021. The data was collected using a form that contains the study variables. Microsoft Excel and SPSS were used for data collection and analysis using frequencies, percentages and measures of central tendency. Results: the sample consisted of a total of 120 patients, 61.7% were women and 38.3% were men. 70.8% were young adults. The mean pachymetry of the center of the pupil, apex, and position of least pachymetry was 521 μm, 520 μm, and 513 μm, respectively. The mean of flattest keratometry, most curved keratometry and maximum keratometry was 43.30 D, 46.32 D and 48.01 D, respectively. Conclusions: the distribution of cases according to frontal elevation and posterior elevation showed pathological values in more than 50% of the corneas studied. According to the average progression index, pathology was found in 18.8% of the cases and according to the average deviations, 25.4% presented corneal ectasia in different stages.