Estudio de la estabilidad en la adaptación de lentes de contacto blando esféricos de hidrogel de silicona, a través de la medida de la curvatura y de la sagita, por medio del método óptico de detección de bordes

Abstract

Objective: To determine the stability of the fitting of spherical soft contact lens, silicone hydrogel, of different commercial houses depending on curvature and sagitta. Methodology: This is a primary research that was developed under the quantitative methodology using a descriptive cross-sectional study, in which the stability of contact lenses was evaluated through the measurement of curvature and sagittal. Results: In the present two-phase research, the sagittarius and the polynomial function of the curvature of soft contact lenses were determined in the first part of the project, by implementing an optoelectronic system and using the optical edge detection method, which showed the effectiveness (95%) of the mentioned method. In the second part, because a different optical system was used and when comparing the results of the measurements, an approximation to the measurement of the contact lens sagittarius located on the corneal surface of the patients was made, with a 60% percentage error. Conclusions: The stability of the fitting of soft spherical contact lenses was determined, as a function of the curvature and sagittal of the lenses, by the edge detection method in the first phase of the investigation, in which the effectiveness of the optical system implemented for this purpose was shown