Confiabilidad de Mediciones de Distancia Pupilar en Estudiantes de Pregrado de la Universidad Santo Tomás Seccional Bucaramanga

Abstract

Objective: To determine the reliability provided by the two systems of measurement of pupil distance, likewise, to describe the demographic characteristics of the studied population, to determine the inter-observer responsibility of the pupil distance taken with Pushbar Milimetrica and Interpupilometro; and determine the concordance of the pupillary distance with two measurement systems. Methodology: A quantitative descriptive observational, type longitudinal study based on diagnostic tests will be carried out, in order to be able to provide information to the educational community and establish what reliability exists between the taking of Pupil distance with the Interpupilometro and Pushbar millimeter in the University Santo Tomas’ undergraduate students Bucaramanga sectional. Qualitative variables are taken into account: age and sex, deviated septum; and for quantitative variables, there are two shots per measurement system and the results will be compared. This analysis will also evaluate reproducibility using an intraclass correlation coefficient (CCI). and reliability was used for the test of Wilcoxon; the concordance with the Lin coefficient was evaluated, being interpreted with kappa and dispersion graphs were used, to analyze the agreement between two diagnostic methods with continuous result. Results: 150 undergraduates from the USTA were evaluated, where most of them were from the faculty of optometry and odontology, of which 68% were female, the ages of participants were between 18 and 25 years; 58% of the participants presented the deviated septum, the median of the cephalic perimeter was 55 cm and the width of the bridge was 10 mm. The CCI inter- examiner obtained with the DNP interpupilometer VL OD 0.75, OI 0.63 VP OD 0.79, OI 0.47 in the DP 0.93 VL and 0.91 VP for the millimeter ruler was found a CCI DNP OD VL 0.66, OI 0.79 VP OD 0.64, OI 0.77 in the DP VL 0.87 and VP 0.81. It was determined by the wilcoxon test that the difference of the medians of the DNP and DIP in VL and VP for both examiner 1 and 2 taken with millimeter and interpupilometer ruler, in comparison to sex, are not statistically significant; On the contrary, when comparing the same medians with the deviated septum, it was presented in some of the statistically significant values. The level of agreement evaluated by the coefficient of Lin where I throw that their values are statistically significant in all the comparisons. Thanks to the Bland and Altman method, it was found that the greater the pupillary distance, the greater the cephalic perimeter, while the bridge width does not interfere with the pupillary distance values. Conclusions: The reproducibility of the pupillary distance taken with both the millimeter and the interpupilometer is comparable, provided that the examiners have at least two years of experience in taking this measure. It was possible to demonstrate that there is poor concordance in the pupillary distance measurement with reglilla and interpupilometer