Exploració per autor "Aldaba Arévalo, Mikel"Més informacióMés informació

Ara es mostren els items 5-24 de 34

    • Clinical evaluation of an automated subjective refraction method implemented in a computer-controlled motorized phoropter 

      Otero, Carlos; Aldaba Arévalo, Mikel; Pujol Ramo, Jaume (Elsevier, 2018-10-01)
      Article
      Accés obert
      Purpose To investigate a new algorithm to perform an automated non-cycloplegic refraction in adults. Methods Fifty healthy subjects were measured twice (test–retest) with the new automated subjective refraction method ...

    • Comparing autorefractors for measurement of accommodation 

      Aldaba Arévalo, Mikel; Gómez López, Selena; Vilaseca Ricart, Meritxell; Pujol Ramo, Jaume; Arjona Carbonell, Mª Montserrat (2015-10-01)
      Article
      Accés obert
      Purpose To compare the static and dynamic accommodative responses measured with the WAM-5500 and the PowerRef-II autorefractors.; Methods The dynamic and static monocular accommodative responses were measured with the ...

    • Does the Badal optometer stimulate accommodation accurately? 

      Aldaba Arévalo, Mikel; Otero Molins, Carles; Pujol Ramo, Jaume; Atchison, David A. (2016-10-23)
      Article
      Accés obert

    • Effect of apparent depth cues on accommodation in a Badal optometer 

      Otero Molins, Carles; Aldaba Arévalo, Mikel; Martínez Navarro, Beatriz; Pujol Ramo, Jaume (2017-11-01)
      Article
      Accés obert
      Background: The aim was to analyse the effect of peripheral depth cues on accommodation in Badal optometers. Methods: Monocular refractions at 0.17 and 5.00 D of accommodative stimulus were measured with the PowerRef ...

    • Effect of Experimental Conditions in the Accommodation Response in Myopia 

      Otero Molins, Carles; Aldaba Arévalo, Mikel; Vera Diaz, Fuensanta; Pujol Ramo, Jaume (2017-10-19)
      Article
      Accés obert
      SIGNIFICANCE The accommodative response is more affected by the type of refractive error than the method of stimulation, field of view (FOV), or stimulus depth. PURPOSE This study aims to analyze the effect of stimulation ...

    • Eye movements in patients with post-COVID condition 

      Viñuela Navarro, Valldeflors; Goset Maldonado, Joan; Aldaba Arévalo, Mikel; Mestre Ferrer, Clara; Rovira Gay, Cristina; Cano, Neus; Ariza, Mar; Delàs Alós, Bàrbara; Garolera, Maite; Vilaseca Ricart, Meritxell (2023-07-07)
      Article
      Accés obert
      Eye movement control is impaired in some neurological conditions, but the impact of COVID-19 on eye movements remains unknown. This study aims to investigate differences in oculomotor function and pupil response in individuals ...

    • Influence of power and the time of application of fogging lenses on accommodation 

      Turull Mallofré, Aina; García Guerra, Carlos Enrique; Mestre Ferrer, Clara; Vilaseca Ricart, Meritxell; Pujol Ramo, Jaume; Aldaba Arévalo, Mikel (2023-09-27)
      Article
      Accés obert
      Fogging is a non-invasive technique based on the use of positive spherical power lenses to relax accommodation during refraction that is commonly used as an alternative to cycloplegic drugs. Although the mechanism of the ...

    • Líneas de investigación en óptica visual y tecnología del color en el CD6 

      Pujol Ramo, Jaume; Vilaseca Ricart, Meritxell; Arjona Carbonell, Mª Montserrat; de Lasarte, Marta; Aldaba Arévalo, Mikel; Zuluaga Duque, Harold; Herrera Ramírez, Jorge Alexis; Díaz Douton, Fernando; Luque, Sergio Oscar; Sanabria Ortega, Fernando Guillermo; Ondategui Parra, Juan Carlos (2009)
      Text en actes de congrés
      Accés obert

    • Measuring the accommodative response with a double-pass system: Comparison with the Hartmann-Shack technique 

      Aldaba Arévalo, Mikel; Vilaseca Ricart, Meritxell; Díaz-Doutón, Fernando; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2012-04)
      Article
      Accés obert

    • Medida de la birrefringencia óptica en las fibras textiles. Parte 1. Demostración teórica 

      Aldaba Arévalo, Mikel; Antó Roca, Joan; Cayuela Marín, Diana; Morales, Cristina (2006-07)
      Article
      Accés obert
      En este trabajo se desarrollan los aspectos teóricos de la medida de la birrefringencia en cuerpos anisotrópicos por el método de Nikitin-Berek. También se desarrolla su aplicación específica a medidas de la birrefringencia ...

    • Medida de la respuesta acomodativa con un sistema de doble paso: aplicación al estudio de la acomodación en función de la edad. 

      Aldaba Arévalo, Mikel (Universitat Politècnica de Catalunya, 2012-10-22)
      Tesi
      Accés obert
      Accommodation, defined as the dioptric change of the eye, enables clear vision at different distances. Its study is interesting due to different aspects: the progressive loss of amplitude of accommodation known as presbyopia, ...

    • Medida del retraso acomodativo con la técnica de doble paso 

      Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Díaz-Doutón, Fernando; Luque, Sergio Oscar; Pujol Ramo, Jaume (2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      La acomodación se define como el cambio dióptrico en la potencia del ojo, que permite ver nítidamente a diferentes distancias. La profundidad de foco del ojo hace que se puedan ver objetos cercanos nítidamente con menor ...

    • Method to reduce undesired multiple fundus scattering effects in double-pass systems 

      García Guerra, Carlos Enrique; Martínez Roda, Juan Antonio; Aldaba Arévalo, Mikel; Díaz Douton, Fernando; Vilaseca Ricart, Meritxell; Vohnsen, Brian; Pujol Ramo, Jaume (2019-04-29)
      Article
      Accés obert

    • New compact open-field double-pass system with asymmetric focus 

      Giner Tort, Anna; Arjona Carbonell, Mª Montserrat; Díaz Douton, Fernando; Aldaba Arévalo, Mikel; García Guerra, Carlos Enrique; Sanabria Ortega, Fernando Guillermo; Pujol Ramo, Jaume (2018-01-01)
      Article
      Accés obert
      Every day more people are using multifocal systems to correct presbyopia, as for example contact lenses or intraocular lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality ...

    • Optical quality and intraocular scattering assessed with a double-pass system in eyes with contact lens induced corneal swelling 

      De Juan, Victoria; Aldaba Arévalo, Mikel; Martin, Raul; Vilaseca Ricart, Meritxell; Herrera, Jose Maria; Pujol Ramo, Jaume (2014-08-01)
      Article
      Accés restringit per política de l'editorial
      Purpose: To evaluate the impact of contact lens (CL)-induced corneal swelling on the optical quality of the eye by means of the double-pass technique.; Methods: Measurements of 6 healthy subjects were obtained in 5 visits ...

    • Optics of astigmatism and retinal image quality 

      Vilaseca Ricart, Meritxell; Díaz-Doutón, Fernando; Luque, Sergio Oscar; Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (INTECH, 2012-02)
      Capítol de llibre
      Accés obert
      In the first part of this chapter, the optical condition of astigmatism is defined. The main causes and available classifications of ocular astigmatism are briefly described. The most relevant optical properties of image ...

    • Precision and agreement of axial length in paediatric population measured with MYAH and AL-Scan biometers 

      Aldaba Arévalo, Mikel; Ochando Olcina, Pablo; Vila Vidal, Núria; Viñuela Navarro, Valldeflors; Guisasola València, Laura; Pérez Corral, Juan Enrique (Taylor & Francis Group, 2023-11-13)
      Article
      Accés restringit per política de l'editorial
      Clinical relevance Measuring axial length is key in the field of myopia development and control. Hence, the precision and agreement of commercially available biometers is of vital interest to understand their variability ...

    • Random Changes of Accommodation Stimuli: An Automated Extension of the Flippers Accommodative Facility Test 

      Otero Molins, Carles; Aldaba Arévalo, Mikel; López, Silvia; Díaz Douton, Fernando; Vera Diaz, Fuensanta; Pujol Ramo, Jaume (2018-02-28)
      Article
      Accés obert

    • Reducing speckle in double-pass systems using focus tunable lenses 

      García Guerra, Carlos Enrique; Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Speckle arises in double-pass systems when coherent light is reflected by the retina. Since it degrades the images that are used to characterize the eye, there is special attention in reducing speckle when working with ...

    • Response for light scattered in the ocular fundus from double-pass and Hartmann–Shack estimations 

      García Guerra, Carlos Enrique; Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Díaz Douton, Fernando; Martínez Roda, Juan Antonio; Pujol Ramo, Jaume (2016-10-06)
      Article
      Accés obert
      Double-pass (DP) and Hartmann--Shack (HS) are complementary techniques based on reflections of light in the ocular fundus that may be used to estimate the optical properties of the human eye. Under conventional data ...