Person:
Rodríguez Alonso, Xabier

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First Name
Xabier
Last Name
Rodríguez Alonso
URI
https://hdl.handle.net/20.500.14352/85766
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Óptica y Optometría
Department
Optometría y Visión
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20203
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Author: Bonnin Arias, Cristina Natalia × Item Type: Publication × Has files: true × Subject: 612.84 ×

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Now showing 1 - 3 of 3
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    Lentes que controlan la luz.
    (Franja visual, 2020) Bonnin Arias, Cristina Natalia; Sánchez Ramos, Celia; Rodríguez Alonso, Xabier; Gutiérrez Jorrín, Sara
    Este artículo se propone conocer la cantidad de luz para todo el espectro visible que alcanza los ojos de las personas en un día nublado y en un día soleado; en función de la posición de mirada del individuo. Se ha querido realizar un ejercicio experimental en esta primera parte, para conocer cuánta luz en fotones llega hasta los ojos de los peatones. Para ello y en todas las medidas se ha utilizado el espectrofotómetro OceanOptics USB2000+ junto con el software SpectraSuite. Este dispositivo realiza mediciones en cuantas de luz (fotones) del rango del espectro comprendido entre 200 y 1100 nm. Como receptor se empleó una fibra óptica muy sensible.
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    Protección del sol en la montaña: Los ojos son más vulnerables.
    (Franja visual, 2020) Bonnin Arias, Cristina Natalia; Gutiérrez Jorrín, Sara; Rodríguez Alonso, Xabier; Domínguez Valdés, Teresa; Sánchez Ramos, Celia
    El uso de lentes para protección solar está extendido a casi todos los ámbitos de la vida diaria en exterior; sin embargo, determinadas activi dades y condiciones requieren una especial atención al seleccionar los lentes más adecuados. Éste es el caso de los deportes y actividades de montaña (senderismo, alpinismo, escalada y otros).
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    Mesopic pupillary reflex in patients treated with fluoxetine
    (Actas Españolas de Psiquiatría, 2020) Rodríguez Alonso, Xabier; Gutiérrez Jorrín, Sara Carmen; Bonnin Arias, Cristina Natalia; Rubio Corgo, Sandra; Arregui Olaizola, Carlota; Quezada Sánchez, Johnny; López-Ibor Alcocer, María Inés; Sánchez Ramos, Celia
    Introduction: currently the treatment of mental illness by antidepressants is very frequent. Selective serotonin reuptake inhibitors are the most prescribed antidepressants worldwide and have been associated with alterations in accommodation or pupil. The objective of this study is to evaluate the effects of fluoxetine on the pupillary reflex and the accommodation in young population. Methodology: The study group included seven patients diagnosed with depression and treated with fluoxetine; 22 subjects were included as a control group. The pupillary reflexes and the accommodative state were evaluated using the Power Refractor II pupilometer. Five phases of 3 seconds each were measured. In phase 2 there was a glare with a white light. Results: For the pupil diameter, maximum and minimum values were obtained in the group of patients treated with fluoxetine than in the control in all the measurement phases. For the control group, a maximum pupillary contraction is observed in the glare phase, however, in the study group it is observed in the phase after glare. As for the accommodation, there are no significant differences between the two groups. Conclusions: In patients treated with fluoxetine there are pupillary alterations like a bigger pupillary diameters and slower pupillary contraction. The lack of conclusive results in terms of accommodation does not mean that there are no changes related to it, whose detection requires future studies with different methodologies and with a larger sample size.