Ricardo Guedes

Learn More
INTRODUCTION Nonpenetrating deep sclerectomy with external trabeculectomy has been proved to be an effective alternative to classic trabeculectomy for surgical treatment of primary open-angle glaucoma. However, this procedure is not well known nor well accepted among Brazilian ophthalmic surgeons. The aim of this study was to assess the results and success(More)
PURPOSE To assess and compare the impact of medical and surgical glaucoma treatments on patients' health-related Quality of Life (QoL). MATERIALS AND METHODS We used the 25-question version of the National Eye Institute Visual Functioning Questionnaire (NEI VFQ-25) for this cross-sectional study. Patients were divided into 3 groups: 1 (medical treatment);(More)
In this article we investigate Multi-agent simulation as a way for modeling strategies for resource allocation problems in Public Safety. The goal is to show how simulation can be used to help law enforcement authorities to evaluate, in a controlled environment, different strategies for allocating and dispatching resources, aiming at reducing both response(More)
PURPOSE To assess the quality of life of glaucoma patients under medical therapy with different prostaglandin analogs. METHODS A cross-sectional study of consecutive glaucoma patients was designed. We assessed the patients' quality of life through the Brazilian 25-question version of the National Eye Institute Visual Functioning Questionnaire, comprising(More)
PURPOSE To assess the resources use, costs and effectiveness of non-penetrating deep sclerectomy (NPDS). METHODS A retrospective cohort of NPDS patients was analyzed. Eyes were stratified according to glaucoma severity into 3 groups: 1 (early), 2 (moderate) and 3 (severe). NPDS associated resources were based on the frequency of the following variables:(More)
PURPOSE Non-penetrating deep sclerectomy (NPDS) has emerged as a viable option in the surgical management of open-angle glaucoma. Our aim is to assess the cost-effectiveness of NPDS and to compare it to maximum medical treatment in a 5-year follow-up. METHODS A decision analysis model was built. Surgical (NPDS) arm of the decision tree was observational(More)
Correspondence address: Ricardo Augusto Paletta Guedes. Av. Rio Branco, 2337 grupo 801/ 807/808 Juiz de Fora (MG) 36010-905 Brazil E-mail: palettaguedes@yahoo.com INTRODUCTION New treatment modalities need economic evaluation in order to facilitate decisions to better allocate health resources. Health technology assessment has great value due to enormous(More)
PURPOSE To assess the results of a pilot study for screening high-risk individuals for glaucoma in Brazil. METHODS Using cross-sectional methodology, the study population consisted of first-degree relatives of known glaucoma patients. Risk factors were assessed through a questionnaire, and each subject received a complete eye examination. RESULTS Sixty(More)
In this article we investigate Multi-agent simulation and Multi-objective Evolutionary Algorithms for optimizing resource allocation in Public Safety. We describe a tool that helps Law Enforcement authorities to evaluate, in a controlled environment, different strategies for allocating and dispatching resources, aiming at reducing conflicting goals such as(More)
BACKGROUND AND OBJECTIVE Phaco non-penetrating deep sclerectomy (PhacoNPDS) is an option to simultaneously treat cataract and glaucoma. The authors assessed tensional success of PhacoNPDS and NPDS up to 3 years of follow-up. PATIENTS AND METHODS A longitudinal consecutive retrospective study was conducted comparing 376 eyes undergoing NPDS (group 1) and(More)