Confiabilidad de la Retinoscopía Estática de Estudiantes y Docentes de la Universidad Santo Tomás

Abstract

Introduction: Static retinoscopy is an objective refractive technique that allows to establish and quantify the ocular refractive state, this can present differences in the results when it is carried out by teachers and students in the Optometry Clinic of the Santo Tomas University section of Bucaramanga when applying a range of 0.50 D, however, it has not yet been determined what is the acceptable error range between both observers, taking into account the characteristics of the study site. The most commonly used equipment for retinoscopy is the recognized band retinoscope, however, the autorefractometer (computerized equipment) is currently being used to perform the refractive state evaluation. The use of these two elements leads to the need to compare the results of both methods to establish its reliability. Objective: Determine the reliability of static retinoscopy obtained by students and teachers of the faculty of optometry of the Santo Tomas University sectional Bucaramanga in patients seen in the clinics of the same institution. Methods: Longitudinal quantitative study of diagnostic tests where will be selected 84 participants through a sampling non-probability for convenience. Each participant was determined the refractive state with the static retinoscopy in the conventional way, band retinoscope and the autorefractometer to compare their results, likewise, the repeatability of the static retinoscopy and the concordance of the obtained results were evaluated by students and teachers through the intraclass correlation coefficient, 95% confidence interval, P value, the Landis and Kosh reproducibility and the concordance according to the Lin coefficient. Results: This research through its results evidences the reliability of static retinoscopy serving as a base in the clinical and academic ambit to the students and teachers of the faculty of optometry of the Santo Tomás University. The error range of interobserver static retinoscopy was ± 0.25 for the sphere and 0.00 for the cylinder and the axis; also showed to be a technically reproducible substantially in the sphere and the cylinder, but for the axis it showed a slight reproducibility. As for the components J0 and J45, it was moderate and for M an almost perfect reproducibility was shown. The concordance of the static retinoscopy compared to the autorefractometer was poor for the sphere, cylinder and axis as well as for the components M, J0 and J45. Conclusions: A good acceptance of the data obtained by the teacher and the students (reproducibility) was observed, in contrast, it was poor for teacher-autorefractometer (concordance).