Pregrado de Optometría

URI permanente para esta colecciónhttp://hdl.handle.net/11634/223

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Efectividad en la optimización de la función visual en pacientes con degeneración macular asociada por la edad, retinosis pigmentaria y distrofia de conos y bastones en la clínica de optometría de la Universidad Santo Tomás en el II periodo 2025
(Universidad Santo Tomás, 2025-06-08) Lopera Alzate, Samuel; Llanes Nigrinis, David Andrés; Figueroa Betancur, Camilo Andrés; Narváez, Olivia Margarita; Parada Jaimes, Yiseth Gerardine; Universidad Santo Tomás
The objective of this study was to describe the degree of potentiation of visual function through the use of selective absorption filters in patients with age-related macular degeneration, retinitis pigmentosa and rod dystrophy, treated at the optometry clinic of the Universidad Santo Tomás during the second period of 2025. A case series study was developed, framed in the evaluation of evidence-based optometric interventions, considering the low frequency and clinical heterogeneity of these pathologies. The population was mostly made up of women from urban backgrounds and medium socioeconomic levels, without previous use of non-conventional optical aids. The results showed a favorable trend in visual acuity and contrast sensitivity, with variations depending on the pathology and the type of filter used. In patients with age-related macular degeneration and rod and cone dystrophy, improvements in visual acuity and contrast sensitivity were observed, while in retinitis pigmentosa there were no changes in visual acuity, but there were changes in contrast sensitivity. The CPF 450 filter was the most preferred, selected in 75% of the cases, demonstrating potential to optimize visual function and performance in daily activities, thus meeting the objectives set.
Medición del enganche académico en estudiantes de Optometría de la Universidad Santo Tomás
(Universidad Santo Tomás, 2026-06-04) Pérez Romero, Laura Sofia; Rodríguez Bayona, Zully Fernanda; Tijo Mora, Laura Daniela; Zabala Roldan, Vanessa Alexandra; D'Antone, Valeria Andrea; Palencia Florez, Diana Cristina; Universidad Santo Tomas
Introduction: academic engagement is defined as an affective-cognitive sense of well-being in the face of academic challenges and is characterized by vigor, dedication, and absorption. It is associated with improved academic performance, retention, and student well-being. Objective: to determine the level of academic engagement among students in the School of Optometry during the 2025 academic year. Methodology: a descriptive, cross-sectional observational study with a census sample. A sociodemographic questionnaire and the UWES-17 scale were administered. Univariate analysis was performed using the Shapiro-Wilk test and measures of central tendency and dispersion; qualitative variables were described using frequencies. Student’s t-test, the Wilcoxon test, and ANOVA were used in the bivariate analysis. Results: a total of 218 students participated (72% of the total); 77% were women, with a median age of 20 years (IQR 18–22) and 50.6% were non-local students. The median for vigor was 3.66 (IQR 2.83–4.66), for dedication 5.3 (IQR 4.6–5.8), and for absorption 4.0 (IQR 3.16–4.83). In the bivariate analysis, when cross-tabulating non-local status with sociodemographic variables, no significant associations were found (p>0.05), except for alcohol consumption and systemic engagement (p<0.05). When relating training cycles to sociodemographic variables, most cross-tabulations showed no statistical significance (p>0.05); only socioeconomic status showed a significant association (p<0.05). Conclusions: commitment remains high and stable throughout the training program, while energy levels and engagement tend to decline. On the other hand, socioeconomic status indirectly influences academic retention, whereas other sociodemographic variables did not show a significant association.
Factores de riesgo asociados a la miopía en Rio de Oro, Cesar, en personas entre los 24 y 38 años, durante los años 2022 y 2024.
(Universidad Santo Tomás, 2026-06-04) Reyes Villamizar, Diego Felipe; Pacheco Cisneros, Angelica Yelitza; Silva Ramírez, Mariana; Olivia Margarita Narvaez Rumié; Clara Inés Beltrán Camacho; Universidad Santo Tomas
Introduction: Myopia is a refractive error characterized by blurred distance vision, frequently associated with astigmatism, which can cause symptoms such as headaches, vertigo, and eye strain. Its prevalence has increased rapidly worldwide, and it is considered a visual epidemic with significant social and economic repercussions. It is estimated that by 2050 more than 50% of the global population will be myopic. In Colombia, recent studies report a steady increase, especially in children and young people, with a prevalence of up to 10.75% in the school-age population. Factors such as genetic predisposition, certain diseases, prolonged use of electronic devices, and low exposure to outdoor activities have been identified as key determinants in its development. Objective: To identify the factors associated with the prevalence of myopia in individuals aged 24 to 38 years treated at El Rosario Opticians in Ocaña, Norte de Santander, between 2022 and 2024. Methodology: A review of the medical records of patients treated between 2022 and 2024 at El Rosario Opticians in Ocaña, Norte de Santander, with a diagnosis of myopia was conducted. The information was extracted from the clinical records and supplemented through telephone contact with the patients. The collected data were organized and analyzed to identify factors associated with myopia.
Caracterización del estado de las habilidades visoperceptuales y de la lectura en estudiantes de cuarto y quinto grado de la Institución Educativa Salesiano de Bucaramanga en el año 2025
(Universidad Santo Tomás, 2026-05-20) Alzate Valencia, Daniela; Arias Acelas, Sara Sofia; Jaimes Quiñones, Arnold Sneider; Palencia Florez, Diana Cristina; Peñaloza Silva, Mayra Alejandra; Universidad Santo Tomás
Introduction: Visual-perceptual skills enable individuals to interpret their surroundings through visual stimuli; therefore, they are important for learning and the reading process. General Objective: To characterize the influence of visual-perceptual skills on the reading process among fourth- and fifth-grade students at the I.T. Salesiano in Bucaramanga in 2025. Methodology: This study was conducted with visually healthy students and those with corrected ametropia. Each student participated in a visual screening where different visual functions were assessed. Additionally, the TVPS-3 and TALE tests were administered individually to evaluate visual perceptual skills and reading ability. Results: A total sample of 48 students was evaluated, comprising 18 females (37.5%) and 30 males (62.5%). On the TVPS-3, the sub-skill with the highest number of correct responses was spatial relations, and the sub-skill that presented the greatest difficulty was visual closure. Regarding the TALE test, a median of three errors was reported for the entire Level II text, with a median reading time of 119 seconds; for reading comprehension of Text II, a median of 8 correct answers was obtained. Discussion: A large portion of the population exhibited the following sociodemographic characteristics: socioeconomic status level 3, not registered in the Sisben system, enrolled in 5th grade, and a median age of 10 years. The most prevalent refractive error was right-eye astigmatism. The visual subskill with the best performance was spatial relationship, while the one with the greatest difficulty was visual closure.
Actualización del contenido conceptual del cuestionario “Low Vision Quality Of Life Questionnaire” para evaluar la calidad de vida relacionada con la visión funcional en pacientes con baja visión residentes en Colombia en el año 2025
(Universidad Santo Tomás, 2026-04-22) Becerra Ariza, Darly Yuslady; Celi Jiménez, Mayerlhi Shamira; Esteban Carvajal, Daniela; Palencia Flórez, Diana Cristina; Universidad Santo Tomás
Introduction: Low vision is an irreversible visual condition that, according to Wilson and Cleary's model, significantly impacts quality of life by influencing the performance of activities of daily living, including physical health, emotional state, social interaction, interaction with the environment, and functionality. This condition progressively worsens, requiring specific instruments to assess its impact. Objective: To update the Low Vision Quality of Life Questionnaire (LVQOL) to assess the quality of life related to visual function in patients with low vision residing in Colombia in 2025. Methodology: Descriptive study evaluating diagnostic tests to validate the content of the updated LVQOL questionnaire in the Colombian population with low vision. The study is conducted in three phases: a zero phase of literature review; in the next phase, the base questionnaire is reviewed by experts and patients, which integrates items from the LVQOL, NEI VFQ-25, VCM1, and VA LV VFQ-48; and finally, a pilot test of the resulting version is conducted with a group of 33 people with low vision. Results: Question 5b elicits the greatest disagreement among participants in terms of the evaluation criteria related to relevance, clarity, wording, adequacy, and relevance. Question 23 obtained greater agreement among participants in the four evaluation criteria. Conclusions: The content validity for the updated Spanish version of the LVQOL scale is adequate and constitutes a solid basis for moving toward more accurate psychometric analyses in a larger sample.
Caracterización de datos topográficos y biométricos en niños de 4 a 13 años del programa manejo integral de la miopía infantil de la Universidad Santo Tomás seccional Bucaramanga en el año 2024
(Universidad Santo Tomás, 2026-04-13) Rincón Parra, Sergio Alessandro; Ruiz Silva, Leidy Daniela; Narváez Rumie, Olivia Margarita; Universidad Santo Tomás
Childhood myopia represents a growing challenge in visual health worldwide, with significant increases in its prevalence and age of onset. The development of effective strategies for its control requires an adequate characterization of ocular parameters in pediatric population. The objective of this article is to describe the topographic and biometric parameters in children from 4 to 13 years old with myopia, belonging to the Comprehensive Management of Myopia in Children (MIMI) program of the Universidad Santo Tomás Bucaramanga in the year 2024. This article is a cross-sectional analytical observational study of 25 children with myopia. Sociodemographic factors, family history, visual activities and screen exposure time were evaluated. Ocular biometry (Lenstar®) and corneal topography (OCULUS Pentacam®) examinations were performed, analyzing axial length (LA) and mean corneal curvature (KM). The mean age was 9.72 years with female predominance (60%). The mean axial length was 25.20 mm (OD) and 25.14 mm (OI), with mean corneal curvature values of 43.6 D in both eyes. Eighty percent of participants reported cell phone/tablet use as their main visual activity, with a mean exposure time of 5.14 hours per day. Risk factors identified for further myopia progression included early myopia diagnosis (before age 5 years), family history, and prolonged screen exposure, highlighting the importance of early detection and follow-up in patients with predisposing factors.
Comparación de dos métodos empíricos para el cálculo del radio de curvatura base en lentes de contacto blandos esféricos
(Universidad Santo Tomás, 2026-01-30) Plata Cardona, Valentina; Hincapié Lopez, Felipe; Moron Barreto, María Catalina; Palencia, Diana Cristina; Universidad Santo Tomás
Introduction: Soft contact lens fitting is a routine clinical procedure. One of the fundamental parameters for a successful fit is the calculation of the base curve radius (BC), as it determines the physiological interaction of the lens with the cornea. Traditionally, the method of adding 1 mm to the flattest keratometry value (K flat) has been used (Method 1). Alternatively, other authors and manufacturers have proposed adjusting this value according to the horizontal visible iris diameter (HVID), adding between 0.6 and 0.9 mm to the K flat (Method 2), depending on the estimated sagittal height of the eye. However, there is no universal consensus nor sufficient comparative clinical studies to validate which of these methods provides a better clinical fit. Objective: To determine which of these two empirical methods for calculating the base curve radius (BC) offers better clinical fitting results in university students with normal corneas. Materials and methods: A cross-sectional diagnostic test evaluation design was used. The population consisted of 15 optometry students (30 eyes) enrolled in their ninth semester at Santo Tomás University during the first semester of 2025. Students diagnosed with dry eye, ocular surface abnormalities (pinguecula or pterygium), previous refractive surgeries, and astigmatism greater than -0.75 were excluded. Each participant was fitted with two identical spherical soft contact lenses, with only the base contour (BC) varying according to the assigned method. Conclusions: Neither method proved to be absolutely superior; rather, they presented specific advantages. Method 2 is recommended when centration and stability are prioritized, while Method 1 is more suitable when a dynamic fit and greater mobility are desired. The final choice should be based on the desired clinical balance between stability, comfort, and corneal health.
Barreras de oferta y demanda a los servicios de salud visual de los padres y madres cabeza de familia residentes en el casco urbano del municipio de Puerto Santander durante el año 2025
(Universidad Santo Tomás, 2026-01-28) Medina Vega, Justin; Holguín Sanabria, Holman Julián; Arévalo Vergel, Roger Stiven; Palencia Flórez, Diana Cristina; Universidad Santo Tomás
Access to visual health services in rural and border contexts faces multiple challenges related to structural, socioeconomic, and administrative factors, particularly affecting heads of household. This study aimed to analyze supply and demand barriers influencing access to visual health services among fathers and mothers who are heads of household living in the urban area of Puerto Santander during 2025. A qualitative phenomenological study was conducted using semi-structured interviews applied to a non-probabilistic convenience sample, defined by thematic saturation. Data analysis was performed through open and axial coding, supported by theoretical frameworks on healthcare accessibility, distance friction, and social capital. The results revealed demand-side barriers such as financial constraints limiting the purchase of corrective lenses, time restrictions related to work and caregiving responsibilities, lack of information about available programs, and institutional distrust. Supply-side barriers included shortage of specialists, operational failures, complex administrative procedures, and referrals to healthcare facilities outside the municipality, increasing waiting times and the risk of discontinuity of care. These barriers were more pronounced among migrant populations due to documentation requirements and perceived exclusionary treatment. In conclusion, effective access to visual health services in Puerto Santander is shaped by the interaction of economic, administrative, territorial, and informational factors, which hinder continuity of care and timely visual correction in this population.
Análisis de la transmisibilidad de la luz en lentes con tratamiento de protección contra luz azul y antirreflejo verde de distintos materiales ofertados en Bucaramanga en el año 2025
(Universidad Santo Tomás, 2026-01-28) Gomez Quintero, Juan David; Rincon Gonzalez, Robert Daniel; Carvajal Rivera, Juan Antonio; Celis Duarte, Nohora Beatriz; Barrios Arlante, Juan José; Universidad Santo Tomas
Exposure to high energy blue light (HEV) from electronic devices and artificial sources has increased, generating risks such as eye fatigue, sleep disturbances and macular pathologies. In Colombia, and specifically in Bucaramanga, it is necessary to evaluate the efficacy, the transmittance of ophthalmic lenses with blue light protection coatings, the improvement of light refraction by ABBE number in thin materials where the use of green anti-reflection improves visual quality in chromatic dispersions and quality of light transmittance. Objective of this study is to analyze the light transmittance in ophthalmic lenses with these blue light protection filters and green anti-reflective coatings, using different materials available in Bucaramanga in the year 2025. Methodology for the study of these coatings It was necessary to evaluate the transmissibility behavior in 18 lenses with blue light filters, 18 lenses with green anti-reflective filters, and 6 lenses without any type of treatment. This behavior was evaluated in different materials by measuring wavelength using a UV-VIS spectrophotometer, an electronic device used to collect practical data on the transmissibility of light wave spectra. In addition, the effect of various weather conditions on blue light protection treatments was analyzed. Results This study showed that the transmissibility of turquoise blue light remains high in practically all samples with a blue filter. On the other hand, in violet blue light, the transmissibility of the lenses was considerably lower, confirming their blocking function. In contrast, in green anti-reflective lenses, transmissibility is generally higher in both turquoise and violet light. This study contributed to decision-making in visual health care in local optometry and to the promotion of information on protective filter coatings. Conclusion Both coatings remained stable over time, and the differences observed can be attributed to variations characteristic of each coating and manufacturer.
Caracterización de habilidades visoperceptuales en niños de 6 a 12 años atendidos por Optometría en el Hospital San Juan de Dios de Rionegro Antioquia en 2025.
(Universidad Santo Tomás, 2026-01-21) Jaramillo Minorta, Nelson Andrés; Gerardino Téllez, Andrea Carolina; Gómez Gutiérrez, Jesús David; Narváez Rumié, Olivia Margarita; Rojas Rangel, Sergio José; Universidad Santo Tomás
Visual perceptual skills, grounded in complex neurological processes that integrate visual sensory information with cognitive interpretation, are essential for effective interaction with the environment. These abilities support tasks ranging from object identification and spatial recognition to detail discrimination and visual tracking. Scientific research, supported by clinical studies and specialized theses, consistently demonstrates their fundamental role in cognitive development, academic learning (reading, writing, mathematics), everyday task performance, and social adaptation. Evidence shows that deficiencies in these skills can significantly impact performance and quality of life, underscoring the need for their thorough assessment and understanding within health and educational fields. Objective: To characterize visual perceptual abilities in children aged 6 to 12 years attending the San Juan de Dios Hospital in Rionegro, Antioquia, in 2025. Methodology: A quantitative, descriptive cross-sectional study was conducted using a non-probabilistic convenience sampling method. A total of 48 schoolchildren were evaluated through refractive examination, visual acuity testing, and a perceptual assessment consisting of seven subskills. Descriptive statistics and chi-square analysis were applied to explore associations with age, sex, school grade, socioeconomic status, and refractive error. Results: most participants presented mild astigmatism but achieved normal functional visual acuity. Perceptual performance was homogeneous, with low variability. Significant associations were observed between age, school grade, and several visual perceptual subskills (p < 0.05), whereas sex, socioeconomic status, refractive error, figure-ground, and visual closure showed no significant relationship.
Evaluación de la superficie ocular, película lagrimal y anexos oculares agricultores de tomate asociadas a la exposición a agroquímicos en Suratá (Santander), 2024
(Universidad Santo Tomás, 2025-12-16) Zapata Aguirre, Maria José; Ochoa Delgado, Isabel Adriana; Córdoba Flórez, Mileydy Alejandra; Palencia Flórez, Diana Cristina; Universidad Santo Tomás
Introduction: Occupational exposure to agrochemicals poses a significant risk to eye health, particularly among agricultural workers. In Suratá, Santander (Colombia), tomato farmers are regularly exposed to pesticides, fertilizers, and insecticides, often without adequate use of personal protective equipment (PPE). Objective: To assess the ocular surface, tear film, and adnexal conditions among tomato farmers exposed to agrochemicals in Suratá, Santander, in 2024. Methods: A cross-sectional descriptive study was conducted among 72 farmers selected through stratified random sampling. The McMonnies questionnaire, Schirmer type I test, Tear Break-Up Time (BUT), and anterior segment ocular examination were used. Data on agrochemical exposure, PPE usage, and ocular symptoms were collected and analyzed. Results: Of the participants, 66.6% used pesticides, and 73.6% reported at least one ocular symptom (dryness, burning, or itching). Evaporative tear dysfunction was the most frequent finding. Bulbar conjunctival alterations, including pterygium and pinguecula, were present in 55.5% of cases and showed a statistically significant association with exposure level (p = 0.047). Conclusion: Agrochemical exposure is associated with ocular alterations, particularly evaporative dry eye and bulbar conjunctival signs. The findings underscore the importance of preventive measures and proper PPE use to safeguard ocular health in agricultural settings.
Diseño de un cuestionario para la caracterización de estudiantes desde un enfoque de diversidad en la Universidad Santo Tomás, Seccional Bucaramanga
(Universidad Santo Tomás, 2025-10-24) Ayala Delgado, Estefania; Palencia Florez, Diana Cristina; Universidad Santo Tomás
Higher education faces the challenge of recognizing student diversity in areas such as gender, disability, interculturality, health, well-being, and support needs. However, the existing characterization tools in Colombia and Latin America are limited, making it difficult to implement evidence-based inclusive policies. The objective of this study was to design a student characterization tool from a diversity perspective at the University of Santo Tomás, Bucaramanga Campus. Methodology: It was developed in two phases: an exploratory review of academic and regulatory literature to identify conceptual categories, and content validation with 13 experts who evaluated the clarity, relevance, and adequacy of the items using a 4-point Likert scale, face-to-face and virtual interviews recorded with informed consent, and a digital form. Results: The need for adjustments in wording and terminology was evident, as well as the incorporation of two new categories: health and well-being, and support and accompaniment needs, resulting in a final version of 35 questions organized into six categories. Conclusion: The instrument is a useful tool for highlighting student diversity and guiding institutional actions that promote access, retention, and equity in higher education.
Descripción de las condiciones de párpados y superficie ocular en estudiantes de laboratorio dental de la Universidad Santo Tomas en el año 2024
(Universidad Santo Tomás, 2025-09-23) Landinez Zuñiga, Angie Daniela; Galvan Collantes, Leidy Tatiana; Aldana Ramirez, Maria Andrea; Palencia Flórez, Diana Cristina; Universidad Santo Tomas
Introduction: Dental laboratory technicians are professionals responsible for designing prosthetic and orthopedic dental devices to improve both oral health and appearance. During their work, they are exposed to particulate matter from the materials used, which can cause skin, respiratory tract, and eye conditions. Objective: To analyze the condition of the eyelids and ocular surface in dental laboratory students at the Universidad Santo Tomás in 2024. Method: A descriptive cross-sectional observational study with analytical intent was conducted. Students were selected through stratified random sampling and grouped based on practice hours (less or more than six hours). Sociodemographic and clinical variables were analyzed through tests such as Schirmer I, Break-Up Time (BUT), tear meniscus evaluation, blink frequency, and ocular protection index. Frequency distributions, central tendency, and dispersion measures were applied. Results: The study included 70 students with an average age of 20.2 years; 74.29% were female. Half of the participants practiced less than six hours, and 84.29% used eye protection. Students with more than six hours of practice had higher exposure to acrylic resins (p=0.001), dental plaster (p=0.002), sandblasters (p=0.002), and mixers (p=0.001). The most common symptoms were occasional eye burning (57.14%), tearing (34.29%), and foreign body sensation (31.43%). Allergic conjunctivitis was identified in 81.43% and anterior blepharitis in 22.86%, with significant differences between groups. All participants showed altered BUT. Conclusion: There is a high prevalence of ocular alterations associated with prolonged exposure during academic practice, highlighting the need to implement preventive measures in the dental laboratory environment.
Evaluación de la calidad de vida relacionada con la Visión funcional en personas con baja visión residentes en Medellín y Bucaramanga entre 2019 y 2024
(Universidad Santo Tomás, 2025-08-27) Barrera Mantilla, Jonnier Sneyder; Bayona Farfán, Nicolle Dayana; Palencia Florez, Diana Cristina
Introduction: Low vision is an irreversible visual condition that compromises visual acuity and visual field, significantly affecting autonomy, functionality, and emotional well-being. Assessing vision-related quality of life makes it possible to understand not only clinical limitations but also the psychosocial and adaptive consequences of this condition. Objective: To evaluate vision-related quality of life in patients with low vision living in Medellín and Bucaramanga between 2019 and 2024. Methods: A descriptive cross-sectional observational study was conducted with 96 patients attending low vision services. The Low Vision Quality of Life (LVQOL) questionnaire was applied, together with the collection of clinical and sociodemographic variables. Data were analyzed using univariate and bivariate statistics, including Fisher’s exact test and the Mann-Whitney U test, with a significance level of p<0.05. Results: The median age was 57 years, with a predominance of females (59.4%). The most frequent pathologies were age-related macular degeneration, diabetic retinopathy, and glaucoma. The greatest limitations were observed in tasks dependent on central vision, such as reading, writing, and label recognition, as well as in mobility under poor lighting conditions and when crossing streets. Emotionally, 30.2% reported significant sadness, and a considerable proportion experienced frustration and restricted social participation. Statistically significant differences were identified in age (p=0.009) and occupation (p=0.001) according to sex. Conclusions: Low vision comprehensively affects both functionality and emotional well-being, reinforcing the need for visual rehabilitation programs that include optical and non-optical aids, mobility training, and psychological support
Estructuracióndel programa de especializaciónen segmento anterior
(Universidad Santo Tomás, 1999) Torres Pérez, Myriam Leonor; Martínez Estupiñan, Claudia Ximena
Estudio comparativo de la efectividad entre la lodoxamida y la levocabastina, en el tratamiento de los episodios agudos de las conjuntivitis alérgicas
(Universidad Santo Tomás, 1999) Salazar Saldarriaga, Mónica; Velásquez Rondón, Alfonso; Mestre, Carlos Eduardo
Diseño de un instrumento clínico para detectar y diagnosticar el síndrome de tokomosho
(Universidad Santo Tomás, 1999) Castillo Valencia, Silvia Ximena; Jaimes Reyes, Ximena Alexandra; Mestre, Carlos Eduardo
Descripción de la Huella de Carbono individual de la Facultad de Optometría de la Universidad Santo Tomás 2023-2024
(Universidad Santo Tomás) Soto Vera, Yaritza Marcela; Rujano Romero, Elvismary del Valle; D´Antone, Valeria Andrea
Carbon footprint has become a critical issue in the context of healthcare and health services, given the substantial contribution they make to greenhouse gas emissions, and optometric practice is not exempt. The objective of this work was to analyze the individual carbon footprint of the members of the Faculty of Optometry through a descriptive observational study. Methodology: The self-completed questionnaire "lifestyle calculator" proposed by the UN for the measurement of emissions was applied. The study sample included all students enrolled in the Faculty of Optometry, with special emphasis on those who were rotating in optometry clinics, as well as teachers and administrative staff belonging to the faculty. Results: 138 people from the Faculty of Optometry participated, corresponding to 46% of the total population. 80.43% were students. The average carbon footprint is 6.82 tCO2 equivalent per person. (min: 3.04 max 17.1) per person. The total individual carbon footprint corresponds to 1003.87 tons of CO2e. These data include emissions grouped into 4 different areas: home, transport, food, and shopping. The individual carbon footprint of optometry faculty members is much higher than expected. It highlights the need to implement effective measures to reduce these emissions, promoting a more robust institutional commitment to environmental sustainability at the USTA
Uso del cannabis medicinal para el manejo de las patologías oculares: una revisión de la literatura
(Universidad Santo Tomás, 2025) Gutiérrez León, Danna Valentina; Almeida Sánchez, María Valentina; Rojas Forero, Jorge Antonio; Palencia Flórez, Diana Cristina
Introduction Cannabis throughout history has been widely used by different groups in many regions and for various treatments or control of some pain and ailments. Currently, work has been done on its components and the effects they have, the cannabis industry Cannabis has evolved exponentially in recent years and that is why we will talk about its effects at the ocular level and its possible uses for the control of diseases in the eye. Objective: analyze the effectiveness of medicinal cannabis for the management of ocular pathologies, as reported in the literature. Materials and methods: a systematic review type quantitative study. The selection of articles was carried out taking into account the identification of terms of reference related to the medicinal uses of cannabis at the ocular level. Publications that met the established selection criteria and made it possible to identify the advantages and disadvantages of using cannabis as an ocular treatment were included. Results: the systematic review included 11 articles that evaluated the therapeutic effects of cannabis on ocular pathologies, highlighting glaucoma (36.4%), ocular pain (18.2%) and neuroprotective effects (9.1%). Other findings included blepharospasm, corneal inflammation, and diabetic retinopathy (9.1% each). Conclusions: medicinal cannabis is emerging as a promising alternative for pathologies such as glaucoma and eye pain. However, the short duration of the effects, the variability of responses and the lack of global representativeness highlight the need for further research.
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
(Universidad Santo Tomás, 2025-01-20) Flórez Pedraza, Deisy Liliana; Márquez Cúrvelo, Yorcelis Saray; Barrios Arlante, Juan José; Palencia Flórez, Diana Cristina
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

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