Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Intraocular lens"”.
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Design, Fabrication and Testing of Diffractive Multifocal Intraocular Lens (MIOL)
… in making the capable of diffractive multifocal Intraocular lens (MIOL) will be be presented in the dissertation. The Diffractive multifocal IOL is a surgical implanted medical devices that have potential to provide the recovery of full range functional vision for cataract patients. The developed …
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Glistenings in Intraocular lenses and their effect on forward light scatter; an in vitro study
… inclusions in the polymer matrix of an intraocular lens (IOL). Acting as refractile particles they may contribute to a reported high level of forward light scatter. However, several studies have reported that there is no significant correlation with a number of measures of visual …
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Outcomes of uveitic cataract surgery in a cohort of South African children
… Fifteen eyes underwent a pars plana vitrectomy, lensectomy with capsulectomy and were left aphakic. Three eyes had an anterior approach lensectomy with insertion of a posterior chamber intraocular lens (PCIOL). All eyes had improvement in BCVA, with a mean gain of 5 lines. BCVA equal to or better …
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Assessment of Ocular Accommodation in Humans
… implanted with an extended depth-of-focus intraocular lens. Using an absolute cut-off criteria of +0.30logMAR improved the repeatability and reliability of the depth-of-focus metrics over a cut-off criteria relative to the best corrected visual acuity. A swept-source anterior segment …
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Consolidating Approaches to Maximise Outcomes and Minimise Complications of Contemporary Cataract Surgery
… is an unavoidable age-change of the crystalline lens which progressively develops and causes visual impairment affecting millions worldwide. Cataract surgery with an intraocular lens, typically performed under local anaesthetic, transforms both vision and quality of life. This thesis explores …
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Posterior Corneal Astigmatism
In order to calculate an appropriate intraocular lens (IOL) power for an eye undergoing cataract surgery, the most important measurements are the axial length of the eye and corneal shape. The cornea is a three dimensional structure and so, although it has commonly been considered as a single …
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Einfluss des Katarakt-Grades auf die optische Biometrie
… von Fercher mit Katarakt-Klassifikation (Lens Opacity Meter®) konnten Hitzenberger et al. sie quantifizieren. In dieser Arbeit wurde ein solcher Vergleich mit zwei Klassifikationssystemen durchgeführt: dem objektiven Streulichtmesssystem Lens Opacity Meter® und dem …
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Correlación entre el resultado refractivo post-catarata con la predicción biométrica pre-operatoria
La cirugía de cataratas por Facoemulsificación es tal vez uno de los procedimientos más realizados en la práctica de oftalmología general, sin embargo el resultado refractivo de esta cirugía no siempre llena las expectativas del oftalmólogo y del paciente, es por esto que es de gran importancia …
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Μελέτη του ενδοθηλίου του κερατοειδούς στον άνθρωπο, in vivo, με τον φακό επαφής του Eisner
… with or without anterior or posterior changes lens, on the other. The first part includes the examination of 200 individuals (400 eyes) aged from 20-93 years. A gradual decrease of the endothelial cell density was found in the first decades. We observed a significant decrease between 50-60 …