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 10 of 10 for “"Intraocular lenses"”.
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Toward a drug delivery coating for intraocular lenses
… used to create a multi-drug delivery coating for intraocular lenses (IOL). The establishment of a drug delivery coating for intraocular lenses required key advances in ultrathin film technology. This thesis focused on rational polymer design for tailored release, incorporation of hydrophobic small …
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Sutured posterior chamber intraocular lenses for traumatic cataract in Africa
… capsule in which it is contained. lntraocular lenses sutured to the sclera in the posterior chamber of the eye (SL TC - Sutured lenses for traumatic cataract) - in the natural position of the crystalline lens - is standard practice at Groote Schuur Hospital in selected patients. It is a …
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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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Tierexperimentelle Erprobung eines vollständig implantierbaren, telemetrisch arbeitenden intraokularen Drucksensors
… of the eye which progression is depending on the intraocular pressure. The gold standard of measuring the intraocular pressure is the Goldmann applantation tonometer. This system can only used by educated ophthalmologists. By now there is no system that can offer an uncomplicated measure of the …
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Analysis and Correction of Corneal Astigmatism in Modern Pseudophakia
Toric intraocular lenses (IOLs) are designed to reduce spectacle dependency by correcting corneal astigmatism at the time of surgery. However, these IOLs are reliant on the accurate prediction of post-operative corneal astigmatism through reliable ocular biometry and the accurate calculation of …
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Consolidating Approaches to Maximise Outcomes and Minimise Complications of Contemporary Cataract Surgery
… millions worldwide. Cataract surgery with an intraocular lens, typically performed under local anaesthetic, transforms both vision and quality of life. This thesis explores several key aspects of contemporary cataract surgery, which is the most commonly performed surgical procedure in the …
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Mechanical design and analysis of implantable components for a retinal prosthesis
… will be supported in the front of the eye by an intraocular support structure. Early designs of this structure were based on the structure of commercially available intraocular lenses commonly used in cataract surgeries. Using stereolithography, a rapid prototyping technique, this structure was …
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Improving visual field tests for populations with advanced glaucoma and visual field loss in the periphery
… point. The results suggested implantation of intraocular lenses reduces the extent of the peripheral visual field. Negative dysphotopsia was detected in a patient, with shrinkage of the capsular bag being identified as the possible cause. Simulations of responses to kinetic stimuli formed a …
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Implantation und Explantation von inaktiven, epiretinal fixierten Retina Implant Systemen am Minipig
… at hand is a system designed for complete intraocular implantation and wireless activation to receive and deliver electric signals. In the course of the development of this system the tolerability of the used materials inside the eye, feasibility of reversible epiretinal fixation via …
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Πειραματική διερεύνηση της θόλωσης των υδρόφιλων ενδοφθάλμιων φακών
Η χειρουργική καταρράκτη διαμέσου μικρής τομής με τη χρήση αναδιπλούμενων ενδοφθάλμιων φακών είχε ως αποτέλεσμα την εμφάνιση μιας νέας επιπλοκής˙ της θόλωσης των φακών. Αρκετοί παράγοντες έχουν ενοχοποιηθεί για την αιτιολόγηση του φαινομένου. Μεταξύ αυτών αναφέρονται η μετεγχειρητική φλεγμονή, η …