Mostrando ítems 1-20 de 21
Ondategui Parra, Juan Carlos (Fecha de defensa: 2016-01-29)
This dissertation deals with the evaluation of ocular optical quality in two types of patients. First, are patients who have undergone different surgical techniques of refractive surgery to correct different degrees of ...
Varón, Ma. Consuelo (María Consuelo) (Fecha de defensa: 2016-12-15)
PURPOSE: This thesis presents the results of a prospective, double-blind and randomized clinical trial conducted at the Hospital de Sant Pau i la Santa Creu ofBarcelona.lts main objective was to assess and compare visual ...
Mas Aixalà, Enric (Fecha de defensa: 2019-07-12)
Introduction: The characterization of the corneal surface and the classification of keratoconus into diverse severity stages is a field of research in constant evolution, not only because of technology advances, but also ...
Pérez Corral, Juan Enrique (Fecha de defensa: 2021-11-09)
The first papers on the fitting of ortho-k lenses in ametropic individuals, treatment that allows them to enjoy good vision without the need to wear glasses or contact lenses, were published almost 60 years ago. Both the ...
Alba Bueno, Francisco (Fecha de defensa: 2014-06-27)
The optical characterization of an intraocular lens (IOL) provides objective and quantitative information that is essential to fully understand its performance as an implant that replaces the crystalline lens in the human ...
Marrugo Hernández, Andrés G. (Andrés Guillermo) (Fecha de defensa: 2013-11-29)
Medical digital imaging has become a key element of modern health care procedures. It provides a visual documentation, a permanent record for the patients, and most importantly the ability to extract information about many ...
Rodríguez Aramendía, Ana (Fecha de defensa: 2023-03-24)
(English) Vision is central to human perception. It emanates from a complex organ, the human eye, starting from photodetection in the retina. However, the quality of the visual experience depends on the anatomical integrity ...
Sánchez Herrero, Eulalia (Fecha de defensa: 2022-01-21)
People with peripheral visual field loss perceive limited information about the environment and present severe problems in achieving successful orientation and mobility. In recent years, virtual and augmented reality systems ...
Pauné i Fabré, Jaume (Fecha de defensa: 2015-11-18)
Myopia is the main cause of vision loss worlwide, with associated ocular pathology risks related to myopia amount. Therefore, interventions directed towards limiting or preventing the progression of myopia are of high ...
Argilés Sans, Marc (Fecha de defensa: 2018-07-09)
Intoduction: There is an agreement in the scientific community, which indicates that excessive exposure to digital displays poses implications at a visual level, being ocular dryness and visual fatigue those of greater ...
Bermúdez Porras, Carlos (Fecha de defensa: 2017-04-22)
Stent quality control is a critical process. Coronary stents have to be inspected 100% so no defective stent is implanted into a human body. We have developed an optical non-contact measurement instrument that provides ...
Palomar Mascaró, Fernando-José (Fecha de defensa: 2013-03-04)
Las hemianopsias homónimas se pueden definir como la pérdida absoluta o parcial de la visión en las mitades derechas o izquierdas de los campos visuales de ambos ojos. Los pacientes que sufren un defecto hemianópsico ...
Alterini, Tommaso (Fecha de defensa: 2021-06-25)
Vision loss affects physical, psychological, and emotional wellbeing and social life as well. High life expectancy and health policies are translated into an aging population worldwide, which has higher risk of eye’s ...
Clavé Cerezo, Laura (Fecha de defensa: 2023-04-27)
(English) Diffractive multifocal intraocular lens typically uses a hybrid refractive-diffractive design that consist of a high-power refractive base lens and a low-power diffractive profile engraved on one of its surfaces. ...
Otero Molins, Carles (Fecha de defensa: 2018-01-19)
A visual stimulus can be presented in free space or through lens-based systems. Interestingly, it has been reported many times in the past that some subjects have poorer accommodative responses when optically stimulated, ...
Ifrah, Reut (Fecha de defensa: 2023-06-26)
(English) Meibomian gland dysfunction (MGD) is a chronic and diffuse abnormality of the meibomian glands (MGs) that occurs in 38% of contact lens (CL) wearers, though the influence of CLs on MGD is equivocal. A topical ...
Santos Vives, Pau (Fecha de defensa: 2018-07-13)
Spatial vision features play a key role in human vision quality, which in turn depends on the retinal image quality and posterior neural processing. The retinal image is affected by three optical phenomena: diffraction, ...
Martínez Roda, Joan A. (Joan Antoni) (Fecha de defensa: 2017-04-27)
Image formation in the retina is the first stage in the visual process (optical stage), which is completed with photoreceptor stimulation and distribution of the generated signals (retinal stage), transmission to the visual ...
Giner Tort, Anna (Fecha de defensa: 2018-10-08)
Vision is presented and universally accepted as the most precious of the human senses.lt is structured in three main parts: the optical system {eye), the photo-sensor {eye's retina), and the data processor (brain). If one ...
Alzaben, Zeyad A. (Fecha de defensa: 2018-06-25)
BACKGROUND: Retinal evaluation performed in the optometry clinic allows optometrists to track the prognosis of retinal disease and to assess anatomical and functional changes related to age and pathological and non-pathological ...