Exploració per autor "Vega Lerín, Fidel"
Ara es mostren els items 1-20 de 43
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Beam-shaping extended depth of focus intraocular lens: optical assessment with corneas of increasing spherical aberration
Madrid Costa, David; Fernández-Vega Cueto, Luis; Azor Morón, Juan Antonio; Vega Lerín, Fidel; Millán Garcia-Varela, M. Sagrario; Alfonso, José F. (2023-02)
Article
Accés obertPURPOSE:To assess the optical quality and halo formation of a beam-shaping extended depth-of-focus (EDOF) intraocular lens (IOL) (AcrySof IQ Vivity; Alcon Laboratories, Inc) with corneas of long-range spherical aberration ... -
Clinical assessment of chromatic aberration in phakic and pseudophakic eyes
Millán Garcia-Varela, M. Sagrario; Vega Lerín, Fidel; Garzon, Nuria (Red Iberoamericana de Óptica (RIAO), 2019)
Text en actes de congrés
Accés restringit per política de l'editorialWe present a psychophysical method and a simple setup for the clinical assessment of the longitudinal chromatic aberration (LCA) in phakic and pseudophakic eyes. A proof of concept built from inexpensive and non-sophisticated ... -
Clinical assessment of chromatic aberration in phakic and pseudophakic eyes using a simple autorefractor
Millán Garcia-Varela, M. Sagrario; Vega Lerín, Fidel; Poyales, Francisco; Garzon, Nuria (2019-08-01)
Article
Accés obertWe describe a psychophysical method and a simple setup – an autorefractor with a Scheiner disc, sequentially illuminated with red and blue lights – for the clinical assessment of the longitudinal chromatic aberration (LCA) ... -
Comparison of far and near contrast sensitivity in patients symmetrically implanted with multifocal and monofocal IOLs
Gil Arnal, Miguel Ángel; Varón Puentes, Maria Consuelo; Cardona Torradeflot, Genís; Vega Lerín, Fidel; Buil, José A. (2013-11-20)
Article
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Comparison of visual and optical quality of monofocal versus multifocal intraocular lenses
Altemir Gómez, I.; Millán Garcia-Varela, M. Sagrario; Vega Lerín, Fidel; Bartol Puyal, Francisco; Giménez Calvo, G.; Larrosa, Jose Manuel; Polo Llorens, Vicente; Pablo Júlvez, Luis E.; García Martín, Elena (2019-02-10)
Article
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Comparison of visual performance between two aspheric monofocal intraocular lens models
Poyales, Francisco; Garzon, Nuria; Rico del Viejo Miranza, Laura; Zhou, Ying; Millán Garcia-Varela, M. Sagrario; Vega Lerín, Fidel (Taylor & Francis, 2021-12-07)
Article
Accés obertClinical relevance It is important to distinguish between visual acuity, optical quality and quality of vision when outcomes obtained with intraocular lenses are evaluated. These parameters, that includeobjective and ... -
Correlation between polychromatic image quality metrics to predict visual acuity in pseudophakic patients
Armengol Cebrian, Jesús; Garzon, Nuria; Vega Lerín, Fidel; Altemir Gómez, I.; Millán Garcia-Varela, M. Sagrario (EPJ Web of Conferences, 2020)
Comunicació de congrés
Accés obertThe optical quality of three multifocal intraocular lenses (MIOLs) was measured in vitro using the area under the modulation transfer function (MTFa) and energy efficiency (EE). We evaluated those metrics through-focus ... -
Diseño y caracterización de un dispositivo óptico para la evaluación de lentes intraoculares in vitro
Azor Morón, Juan Antonio; Mendoza Párraga, Alison Lizbeth; Vega Lerín, Fidel; Millán Garcia-Varela, M. Sagrario (Comité de Optoelectrónica, 2021)
Comunicació de congrés
Accés restringit per política de l'editorialSe ha realizado el diseño y la caracterización de un dispositivo en banco óptico, que incorpora un nuevo modelo de ojo fisiológico y un sistema de óptica adaptativa controlado por ordenador, para la evaluación in vitro de ... -
Dynamics of fast pattern formation in porous silicon by laser interference
Pelaez de Fuentes, Ramon Javier; Khun, Timo; Vega Lerín, Fidel; Afonso Rodriguez, Carmen Nieves (2014-10-24)
Article
Accés obertPatterns are fabricated on 290 nm thick nanostructured porous silicon layers by phase-mask laser interference using single pulses of an excimer laser (193 nm, 20 ns pulse duration). The dynamics of pattern formation is ... -
Energy balance in apodized diffractive multifocal intraocular lenses
Alba Bueno, Francisco; Vega Lerín, Fidel; Millán Garcia-Varela, M. Sagrario (2011)
Article
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Energy Distribution between Distance and Near Images in Apodized Diffractive Multifocal Intraocular Lenses
Vega Lerín, Fidel; Alba Bueno, Francisco; Millán Garcia-Varela, M. Sagrario (2011-07)
Article
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Energy efficiency of a new trifocal intraocular lens
Vega Lerín, Fidel; Alba Bueno, Francisco; Millán Garcia-Varela, M. Sagrario (2014-01-15)
Article
Accés obertThe light distribution among the far, intermediate and near foci of a new trifocal intraocular lens (IOL) is experimentally determined, as a function of the pupil size, from image analysis. The concept of focus energy ... -
Equivalence of two optical quality metrics to predict the visual acuity of multifocal pseudophakic patients
Armengol Cebrian, Jesús; Garzon, Nuria; Vega Lerín, Fidel; Altemir Gómez, I.; Millán Garcia-Varela, M. Sagrario (2020-05-01)
Article
Accés obertThis article studies the relationship between two metrics, the area under the modulation transfer function (MTFa) and the energy efficiency (EE), and their ability to predict the visual quality of patients implanted with ... -
Experiment design for through-focus testing of intraocular lenses
Millán Garcia-Varela, M. Sagrario; Alba Bueno, Francisco; Vega Lerín, Fidel (2013)
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Extended depth of focus intraocular lens: Chromatic performance
Millán Garcia-Varela, M. Sagrario; Vega Lerín, Fidel (2017-09-01)
Article
Accés obertWe describe a first-and-second-diffractive-order intraocular lens ((1st,2nd)DIOL) within the class of hybrid refractive-diffractive designs for intraocular lenses (IOLs) and analyse its properties of focus extension and ... -
Halo and Through-Focus Performance of Four Diffractive Multifocal Intraocular Lenses
Vega Lerín, Fidel; Alba Bueno, Francisco; Millán Garcia-Varela, M. Sagrario; Varón Puentes, Maria Consuelo; Gil Arnal, Miguel Ángel; Buil Calvo, José Antonio (2015-05-05)
Article
Accés obertPURPOSE. To compare, as a function of pupil size, the through-focus performance and halo features of four diffractive intraocular lenses (IOLs). METHODS. Three diffractive bifocal IOLs (ReSTOR þ2.5 D SV25T0, Tecnis þ2.75 ... -
Halo in extended depth of focus and bifocal intraocular lenses
Vega Lerín, Fidel; Azor Morón, Juan Antonio; Millán Garcia-Varela, M. Sagrario (2022-07)
Article
Accés restringit per política de l'editorialPurpose: To evaluate the size and intensity of the halos generated in distance vision by bifocal and extended depth of focus (EDOF) intraocular lenses (IOLs) as a function of pupil size, lens base power and lens addition. ... -
Halos and multifocal intraocular lenses: origin and interpretation
Alba Bueno, Francisco; Vega Lerín, Fidel; Millán Garcia-Varela, M. Sagrario (Elsevier, 2014-11-04)
Article
Accés obert -
Impact of lens material on objective refraction in eyes with trifocal diffractive intraocular lenses
Garzón Jimenez, Nuria; Poyales, Francisco; García Montero, María; Vega Lerín, Fidel; Millán Garcia-Varela, M. Sagrario; Albarrán Diego, César (2021-01-01)
Article
Accés obertPurpose: Compare subjective (Rx) and objective (ObjRx) refractions outcomes with two autorefractors models and an aberrometer in eyes implanted with a hydrophobic trifocal IOL (FineVision POD F GF, Physiol, Liége, Belgium) ... -
Laser fabrication of porous silicon-based platforms for cell culturing
Pelaez de Fuentes, Ramon Javier; Afonso Rodriguez, Carmen Nieves; Vega Lerín, Fidel; Recio Sanchez, Gonzalo; Torres Costa, Vicente; Manso Silvan, Miguel; Garcia Ruiz, Josefa Predenstinacion; Martin Palma, Raul Jose (2013-11)
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Accés restringit per política de l'editorial