This research's objective was to propose a new methodology to increase the daily goal of attended ophthalmologic patients of the Honduran Institute of Social Security (IHSS) through the usage of FlexSim Healthcare, a simulation software that allows the visualization of different real-life scenarios in a digital context, to provide various medical attention options with chronic diseases and those with ease-of-treatment applying Grouped Medical Appointment(GMA) models. To carry out this research,

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... several visits to the IHSS were made to initially familiarize with the process, and finally to obtain data. This statistical data was translated to statistical distributions that determined the initial simulated system behavior; to perform its simulation and the model with the proposed methodology.The results showed that the initial model was validated; therefore, the initial model represented the real-life model entirely. The results validated the model, therefore, the initial system represents the real-life system accurately. Furthermore, it was proved that the factors that affected the attention process of the clinic were the queue times for the medical visit and the doctors' treatment/processing time for each patient. This validation was achieved through the use of key performance indicators, including fill rate and the total number of attended patients. The results obtained in the simulation of the initial model showed that the initial was that of 68.37% and that the total amount of patients was 69. The results obtained after the implementation of this model yielded a total of 88 patients attended, an increase of 27.53% compared to the initial numer (69). The method also fulfilled the established daily patient attended goal by lowering the total time spent by patients in the system from 204.23 minutes to 108.45 minutes, an improvement of 46.9% in comparison to the initial model.