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 17 of 17 for “"Corneal Stroma"”.
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Structural Studies of the Corneal Stroma
The corneal stroma is an unusual connective tissue in that it is transparent to visible light and that it can swell to many times its original weight when placed in salt solution with a consequent loss in transparency with swelling. The stroma consists of lamellae of parallel collagen fibrils, of …
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Ultrastructural studies of cornea and sclera
… 7: 2. 1985). It was shown that the water in the corneal stroma is evenly distributed around the fibrils over the hydration range H=O to H=4. Above H=4 more water is entering the stroma than can be "accounted for if its distribution is uniform. The transmittance of light through the bovine cornea …
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Antimikrobielle Therapie der Hornhaut : die Pharmakokinetik in der lokalen Therapie und ihre Optimierung durch den Mikrotrepan; am Beispiel von Ciprofloxacin und PVP-Jod
… potency of the microtrephine in the corneal therapy. We used Polyvidon-Iodine (PVP-Iodine) as reference substance in relation to Ciprofloxacin in order to study penetration into the cornea. The analysis was performed by energy-dispersive x-ray analysis (EDXA). Topical application of …
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The effect of macromolecular crowding on the structure of the protein complex superoxide dismutase
… rate of diffusive transport in excised porcine corneal stroma using FCS for fluorescent labeled dextran molecules with hydrodynamic radii ranging from 1.3 to 34 nm. Dextran molecules diffuse more slowly in cornea as compared to buffer solution. The reduction in diffusion coefficient is modest …
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All-solid-state femtosecond medical lasers and nonlinear laser-tissue interactions
… laser pulses ranges from 800 fs to 20 ps. The corneal ablation threshold as a function of the laser pulse width and the depth in the corneal stroma was precisely determined by simultaneous monitoring of the intensity of the laser-induced plasma and the second harmonic signals coming from the …
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Optical coherence vibrography : a quantitative tool for probing auditory and ocular biomechanics
… to calculate the shear-elastic modulus of the corneal stroma. Our study demonstrates the first OCT-based quantification of corneal elasticity in live humans.
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Femtosekundinių lazerio impulsų taikymas refrakcinei chirurgijai /
… that are currently used for the refractive corneal surgery, with a single Yb:KGW femtosecond nIR laser equipped with the UV harmonic generator. We have demonstrated that: (1) the rate, at which the radiation of the high repetition rate femtosecond UV harmonic generator can be manipulated, is …
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Applications of femtosecond laser pulses in refractive eye surgery /
… that are currently used for the refractive corneal surgery, with a single Yb:KGW femtosecond nIR laser equipped with the UV harmonic generator. We have demonstrated that: (1) the rate, at which the radiation of the high repetition rate femtosecond UV harmonic generator can be manipulated, is …
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Defensins In Ocular Immunity
<p>Corneal infection with P. aeruginosa results in corneal perforation in susceptible</p> <p>B6, but not resistant BALB/c mice. This study explored their role mBD 1-4 in corneal</p> <p>infection, and their potential synergy. Immunostaining and real-time RT-PCR data</p> <p>demonstrated that their …
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Neuropathology and sensitivity in the keratoconic cornea
Corneal touch threshold (CTT) was investigated by aesthesiometry in patients with keratoconusq with and without contact lens wear. Using a matching control group it was established that CTT was significantly higher for the central corneal position in keratoconus. No difference inCTT was found in …
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Transcriptional profiles of differentiating periocular neural crest cells and the function of Nephronectin during chick corneal development
… of migration that result in the formation of the corneal endothelium and stroma. Abnormalities in pNC migration lead to corneal malformation, such as anterior segment dystrophy. Corneal dystrophies, infections, and injuries can lead to corneal blindness, one of the major causes of blindness. …
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Pathogenesis, presentation, and treatment of keratoconus within the United States
… no longer be corrected, become candidates for corneal transplant surgery. It is today the third most common cause for corneal transplant. This study focused on detailing the various treatment options keratoconus patients have, as well as what advances these treatments have each made in recent …
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Untersuchungen zur Verbesserung der Kompatibilität und der Adhäsion zwischen dem künstlichen Epithel und der Hornhaut mittels eines Dentinhaftvermittlers
… chemical burns, the treatment of the exposed corneal stroma is generally started with the adhesion of a contact lens. The Histoacryl adhesive used during the surgery often causes unwanted side effects. Vascularisation of the cornea, leukocyte invasion and mechanical irritations and often a …
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TOLL-LIKE RECEPTOR EXPRESSION AND FUNCTION
… cytokines (IL-1α/β, TNFα, TGFβ), in a human corneal organ culture model following desiccation and in conjunctival impression cytology (CIC) samples from human dry eye patients. (3) TLR and/or AMP expression was determined at the ocular surface and/or lacrimal gland in mice with EDE using …
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Corneal Wound Healing: Cells and Molecules
Purpose: Corneal abrasion elicits an acute inflammatory response involving neutrophil (PMN) and platelet extravasation from the limbus. While these cells deliver important growth factors that promote wound healing, resolution of the inflammatory response (i.e., PMN clearance) is also needed to …
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Multi-Dimensional Imaging of Cell and Extracellular Matrix Interactions During Corneal Wound Healing
The file named "KIVANANY-DISSERTATION-2018.pdf" is the primary dissertation file. In addition, 14 supplemental files are available and may be viewed individually.