Browsing by Author "Vega Lerín, Fidel"
Now showing items 1-20 of 23
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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 -
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 ... -
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 -
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 ... -
Polychromatic image performance of diffractive bifocal intraocular lenses: longitudinal chromatic aberration and energy efficiency
(2016-04-01)
Article
Open AccessPURPOSE. The study evaluated—theoretically and experimentally—the longitudinal chromatic aberration (LCA) and through-focus energy efficiency (TF-EE) of diffractive–refractive bifocal intraocular lenses (2f-IOLs). METHODS. ... -
Relationships between lens performance and different sensor sizes in professional photographic still SLR cameras
(2009-08-21)
Article
Restricted access - publisher's policy -
Stereo-Acuity in Patients Implanted with Multifocal Intraocular Lenses: Is the Choice of Stereotest Relevant?
(2014-07-01)
Article
Open AccessPurpose: A randomized and double-blinded study design was implemented to assess the stereo-acuity in patients symmetrically implanted with four types of multifocal intraocular lenses (MIOLs), compared to a monofocal lens ... -
Ultraviolet laser patterning of porous silicon
(American Institute of Physics (AIP), 2014-05-14)
Article
Open AccessThis work reports on the fabrication of 1D fringed patterns on nanostructured porous silicon (nanoPS) layers (563, 372, and 290nm thick). The patterns are fabricated by phase-mask laser interference using single pulses of ...
