View clinical trials related to Keratitis.
Filter by:To quantify and compare baseline tear proteins and ocular response in contact lens wearers with a history of corneal infiltrative events, to those without a history of complications. This will be accomplished via measurement of select anti-inflammatory tear proteins before, during and after contact lens wear.
We investigated the hemostatic differences according to the main anesthetic agents by analyzing rotational thromboelastometry (ROTEM) under the hypothesis that propofol-based anesthesia would impair postoperative coagulability more than the sevoflurane-based anesthesia.
The introduction of surgical robots in the OR revolutionized a number of specialties (i. e. urology, gynecology, digestive surgery). Robots are currently used in many situations and the list of appropriate indications is growing rapidly. There are many potential advantages of robotics in eye surgery such as increased precision and maneuverability, better ergonomics, improved patient access to surgeons and surgical training. As a result, robotics might improve patient care. The Da Vinci© robot has been used for 10 years in experimental conditions to suture corneal lacerations, to perform corneal grafts, to remove ocular foreign bodies, lens capsules and vitreous. The authors reported a lack of precision resulting from poor visualization and the absence of microsurgical instruments. These elements were considered to be hurdles to further clinical investigation. The new Da Vinci Si HD© robot has been available since 2009 at the IRCAD center and more recently in Strasbourg University Hospital. It provides greater magnification and better resolution of the operative field than the previous model. We performed since 2012 various ocular surface surgeries on porcine eyes at the IRCAD center. The aim of the present trial is to perform the same procedures (amniotic membrane transplantations, pterygium surgeries, corneal grafts) in a clinical setting with the Da Vinci Si HD© system.
The corneal collagen cross linking is currently used in the treatment of keratoconus but this procedure has also a sterilizing non-specific effect on bacteria and fungus. So the corneal cross linking in association with the antibiotic treatment could result in a reduction of the duration of epithelial complete healing of the cornea.
The purpose of this study is to compare a corneal sampling realized by a flocked swab (flocked swab regular 519CS01) with a sampling by traditional fiber swab (Copan regular swab 164KS01 in polyester). Their impact on the sensibility of the viral culture in the Herpes simplex epithelial keratitis will be the primary objective of this study.
The purpose of this study is to evaluate efficiency of CACICOL20 for bacterial keratitis. It is a double blinded comparison of epithelial defect in two groups of patients randomized between CACICOL20 and physiological salt solution.
Microbial infection of the cornea, also known as microbial keratitis, causes severe corneal inflammation that could result in permanent visual loss. Contact lens wear is the strongest risk factor related to microbial keratitis in developed countries. The most commonly isolated pathogen of contact lens associated microbial keratitis (CLMK) is Pseudomonas aeruginosa, which accounts for over one third of the cases. Among the various virulence factors involved in the pathogenesis of pseudomonal keratitis, a secretion system known as type three secretion system (T3SS) secretes toxins that damage the host cells. ExoS is a bifunctional exotoxin with GTPase-activating protein (GAP) activity and ADP ribosyl transferase (ADPRT) activity. It results in an invasive phenotype of P. aeruginosa causing a relatively slower host cell death with intracellular invasion and possibly proliferation of bacterium. In contrast, ExoU expressing strains carries a cytotoxic phenotype that causes rapid host cell lysis due to its phospholipase activity. Previously, cytotoxic strains were reported to be more commonly found in patients with pseudomonal keratitis and were highly correlated with multidrug resistance. In order to understand the pathogenesis of CLMK, especially pseudomonal related CLMK, we proposed to recruit 180 volunteers who will wear different contact lens materials. We then collect the used contact lens and analyze 1) the microbiota on the used contact lens; 2) the bacterial-contact lens adhesion of wild strains, pscC mutant strains (T3SS needle-comples mutant), cytotoxic strain, and invasive strain P. aeruginosa; 3) the effect of shearing forces on bacterial-contact lens adhesion; 4) the bacteriocidal effect of multipurpose solution on different strains of P. aeruginosa.
The purpose of this study is to evaluate the efficacy of collagen cross-linking for treatment of infectious keratitis.
The purpose of this study is to assess the efficacy and safety of T4020 versus vehicle.
This study is aimed at assessing the safety and the efficacy of two dose regimens of recombinant human nerve growth factor (rhNGF) eye drops solution compared to vehicle for inducing a complete healing of stage 2 (persistent epithelial defect) and 3 (corneal ulcer) neurotrophic keratitis