Browsing by Author "Vega Lerín, Fidel"
Now showing items 1-20 of 29
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Clinical assessment of chromatic aberration in phakic and pseudophakic eyes
(Red Iberoamericana de Óptica (RIAO), 2019)
Conference report
Restricted access - publisher's policyWe 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
(2019-08-01)
Article
Open AccessWe 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
(2013-11-20)
Article
Restricted access - publisher's policy -
Comparison of visual and optical quality of monofocal versus multifocal intraocular lenses
(2019-02-10)
Article
Open Access -
Correlation between polychromatic image quality metrics to predict visual acuity in pseudophakic patients
(EPJ Web of Conferences, 2020)
Conference lecture
Open AccessThe 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 ... -
Dynamics of fast pattern formation in porous silicon by laser interference
(2014-10-24)
Article
Open AccessPatterns 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
(2011)
Article
Open Access -
Energy Distribution between Distance and Near Images in Apodized Diffractive Multifocal Intraocular Lenses
(2011-07)
Article
Open Access -
Energy efficiency of a new trifocal intraocular lens
(2014-01-15)
Article
Open AccessThe 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
(2020-05-01)
Article
Open AccessThis 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
(2013)
Conference report
Restricted access - publisher's policy -
Extended depth of focus intraocular lens: Chromatic performance
(2017-09-01)
Article
Open AccessWe 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
(2015-05-05)
Article
Open AccessPURPOSE. 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 ... -
Halos and multifocal intraocular lenses: origin and interpretation
(Elsevier, 2014-11-04)
Article
Open Access -
Laser fabrication of porous silicon-based platforms for cell culturing
(2013-11)
Article
Restricted access - publisher's policy -
Nanoporous silicon-based surface patterns fabricated by UV laser interference techniques for biological applications
(2016-05-04)
Article
Open AccessThe fabrication of selectively functionalized micropatterns based on nanostructured porous silicon (nanoPS) by phase mask ultraviolet laser interference is presented here. This single-step process constitutes a flexible ... -
New trends in intraocular lens imaging
(2011)
Article
Open Access -
Optical performance of a monofocal intraocular lens designed to extend depth of focus
(2020-09-01)
Article
Restricted access - publisher's policyPurpose: To test the performance of a new monofocal intraocular lens, intended to extend depth of focus (Tecnis Eyhance, ICB00; Johnson & Johnson Vision, Inc) (ICB-IOL), in comparison to a standard monofocal IOL (Tecnis ... -
ÒPTICA FÍSICA (Examen 1r quadrimestre, 2n parcial)
(Universitat Politècnica de Catalunya, 2017-01-10)
Exam
Restricted access to the UPC academic community -
Patient-Perceived and Laboratory-Measured Halos Associated with Diffractive Bifocal and Trifocal Intraocular Lenses
(2017-11-21)
Article
Open AccessPurpose: To examine and assess the halos generated in distance vision by multifocal intraocular lenses (IOLs) using both in vitro objective and in vivo subjective methods. Setting: The objective method was carried out in ...
