Departament d'Òptica i Optometria

Optical and visual characterization of multifocal contact lenses and multifocal intraocular lenses

Giner Tort, Anna (Universitat Politècnica de Catalunya, 2018-10-08)
Tesi
Accés obert

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 ...

Novel system for measuring the scattering of the cornea and the lens

Santos Vives, Pau (Universitat Politècnica de Catalunya, 2018-07-13)
Tesi
Accés obert

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, ...

Estudi del parpelleig en usuaris/es de pantalles digitals : anàlisi d'estratègies pel condicionament del parpelleig i la distància de manera no intrusiva

Argilés Sans, Marc (Universitat Politècnica de Catalunya, 2018-07-09)
Tesi
Accés obert

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 ...

Implementation of differential self-mixing interferometry systems for the detection of nanometric vibrations

Azcona Guerrero, Francisco Javier (Universitat Politècnica de Catalunya, 2018-07-20)
Tesi
Accés obert

In this Thesis, we explore Self-mixing interferometry (SMI ), a method capable of producing high resolution optical path related measurements in a simple, compact and cost-effective way. Even with a notably less complex ...

Structural and functional macular inter-ocular asymmetry in patients with high myopia

Alzaben, Zeyad A. (Universitat Politècnica de Catalunya, 2018-06-25)
Tesi
Accés obert

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 ...

Device and strategy for surface energy measurement

Domínguez Álvarez, Noemí (Universitat Politècnica de Catalunya, 2018-03-15)
Tesi
Accés obert

In this Ph.D. Thesis, we have developed a new measurement method to measure the contact angle and the surface energy in hydrophobic samples with a device based on confocal technology. This new measurement method incorporates ...

Development of a new spectral imaging system for the diagnosis of skin cancer

Delpueyo Español, Xana (Universitat Politècnica de Catalunya, 2017-11-06)
Tesi
Accés obert

The incidence of skin cancer in Europe, US and Australia has been rising rapidly. Skin cancer accounts for one in three cancers worldwide and a person has 1:25 chance to develop a melanoma, the most aggressive form. Visual ...

Lens-based technologies to study accommodation and refraction

Otero Molins, Carles (Universitat Politècnica de Catalunya, 2018-01-19)
Tesi
Accés obert

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, ...

The design and implementation of a spectrally tuneable LED-based light sourde : towards a new era of intelligent illumination

Hertog, Wim (Universitat Politècnica de Catalunya, 2017-06-07)
Tesi
Accés obert

Rising population numbers place ever increasing demands on energy resources. A large percentage of the worldwide energy production is reserved for the generation of electricity and a significant portion of the electrical ...

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