Person: Bonnin Arias, Cristina Natalia
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First Name
Cristina Natalia
Last Name
Bonnin Arias
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Óptica y Optometría
Department
Optometría y Visión
Area
Optica
Identifiers
5 results
Search Results
Now showing 1 - 5 of 5
- Project number: PIMCD444/23-24
Item Vídeos didácticos de patologías sistémicas con impacto en la salud visual utilizando software de animación(2024) Sánchez Ramos, Celia; Bonnin Arias, Cristina Natalia; Llorens Casado, María Belén; Blázquez Sánchez, Vanesa; Pitarch Velasco, Aída; Dorronzoro Ramírez , Emilio; Ortín Trujillano, Francisco Javier; Toure Sarr, Mame Diatou; Baoud Ould Haddi, Innas; Flores Cervantes, Merire Dayan; Martínez Álvarez, Belén; Bueno Fernández, SaraVídeos didácticos de animación que permita conocer de manera gráfica y visual las más prevalentes patologías sistémicas generales, infecciosas y neurodegenerativas, que cursan con afectación ocular. Los vídeos de animación se generan mediante un software que permite crear vídeos realistas y profesionales a personas no expertas en diseño gráfico. Se trata de elementos audiovisuales que transfieren el contenido de un tema, de forma esquemática, mediante dibujos en pizarra blanca que, aparentemente, se realiza durante la explicación del tema. En cada vídeo se tratará una patología sistémica (general, infecciosa y neurodegenerativa) y las afecciones oculares relacionadas con ellas. Item Development of a Method to Potentially Substitute Direct Evaluation of Mesopic Visual Acuity in Drivers(International Journal of Environmental Research and Public Health, 2021) García Rojo, Marta María; Bonnin Arias, Cristina Natalia; Chamorro Gutiérrez, Eva; Álvarez Peregrina, Cristina; Sánchez Ramos, Celia(1) Background: In mesopic lighting conditions, or under adverse environmental circumstances, visual information is reduced, which increases the risk of traffic accidents. This effect could be reduced with a precise evaluation of the visual function under mesopic conditions, but it is difficult to replicate in clinics. This study aims to develop an easy-to-adopt method to evaluate mesopic visual acuity (VA) in drivers. (2) Methods: Prospective and observational study in drivers. logMAR mesopic VA was compared with photopic VA measured under different combinations of contrast charts and filters to find the combination that responds best to mesopic conditions. (3) Results: Fifty-six drivers were examined. The best correlation was found with an 80% density filter and a Weber contrast chart of 20%. The logMAR VA for this combination was 0.01 ± 0.11, which was close to the mesopic VA values (0.01 ± 0.12). The difference between both logMAR VA was 0.00 ± 0.06 (R = 0.86; p ≤ 0.001; ICC = 0.86). (4) Conclusions: The use of 20% contrast optotypes and the interposition of an 80% filter under photopic conditions provide VA values similar to those measured under mesopic lighting conditions, making this simple system a good predictor of mesopic VA values.- Project number: 142
Item Diseño y creación de recursos digitales para elaborar, tutorizar y evaluar un Trabajo Fin de Grado en el sistema híbrido de enseñanza presencial-virtual(2021) Bonnin Arias, Cristina Natalia; Santurtun de la Hoz, Maria Jesus; Lorente Velázquez, Amalia; Pitarch, Aida; Puell Marín, María Cinta; de la Torre Adrados, Almudena Rosario; Domínguez Valdés, Maria Teresa; Feijoo Garcia, Jennifer Item Retinal protection from LED-backlit screen lights by short wavelength absorption filters(Cells, 2021) Sánchez Ramos, Celia; Bonnin Arias, Cristina Natalia; Blázquez Sánchez, Vanesa; Aguirre Vilacoro, Victoria; Cobo Díaz, Teresa; García Suárez, Olivia; Pérez Carrasco, María Jesús; Álvarez Peregrina, Cristina; Vega Álvarez, José AntonioBackground: Ocular exposure to intense light or long-time exposure to low-intensity short-wavelength lights may cause eye injury. Excessive levels of blue light induce photochemical damage to the retinal pigment and degeneration of photoreceptors of the outer segments. Currently, people spend a lot of time watching LED screens that emit high proportions of blue light. This study aims to assess the effects of light emitted by LED tablet screens on pigmented rat retinas with and without optical filters. Methods: Commercially available tablets were used for exposure experiments on three groups of rats. One was exposed to tablet screens, the other was exposed to the tablet screens with a selective filter and the other was a control group. Structure, gene expression (including life/death, extracellular matrix degradation, growth factors, and oxidative stress related genes), and immunohistochemistry in the retina were compared among groups. Results: There was a reduction of the thickness of the external nuclear layer and changes in the genes involved in cell survival and death, extracellular matrix turnover, growth factors, inflammation, and oxidative stress, leading decrease in cell density and retinal damage in the first group. Modulation of gene changes was observed when the LED light of screens was modified with an optical filter. Conclusions: The use of short-wavelength selective filters on the screens contribute to reduce LED light-induced damage in the rat retina.- Project number: 300
Item Guía gráfica de afecciones oculares secundarias a patologías sistémicas(2023) Sánchez Ramos, Celia; Bonnin Arias, Cristina Natalia; Lobato Rincón, Luis Lucio; Llorens Casado, María Belén; Pitarch Velasco, Aída; Bueno Fernández,Sara; Blázquez Sánchez, Vanesa; Dorronzoro Ramirez, Emilio; Domínguez Valdés, Teresa; Ortín Trujillano, Francisco JavierEsta guía didáctica constituye una completa base de datos de patologías sistémicas generales, infecciosas y neurodegenerativas, que sirve tanto de material de aprendizaje y autoevaluación para estudiantes, así como de material de consulta y comparación para profesionales del área de Ciencias de la Visión y Oftalmología.