Active clinical trials for "Keratoconjunctivitis"

This is a search strategy for determining the prevalence of ocular complications in inflammatory rheumatic diseases for the purposes of a meta analysis.

The aim of this study is to describe the clinical, meibographic and interferometric manifestations of phlyctenular keratitis in children.

The purpose of this study is to investigate the ability of an imaging device, developed by AdOM Advanced Optical Technologies Ltd. ("AdOM"). The device allows a three-dimensional imaging of the ocular tissues, specifically the tear film layers and the retinal layers. The device is based on the use of white light. In this initial study, the device will be used to assess the tear film which coats the corneal surface in healthy subjects as well as in moderate-to-severe Keratoconjunctivitis Sicca (KCS) or Dry Eye Syndrome (DES). The ability of the device to assess the retinal layers will be evaluated in the second phase of the study.

The specific aims of the the investigators studies are as follows: To collect the tear samples from patients with different ocular surface disorders, including SLK, conjunctivochalasis, and keratoconjunctivitis sicca (KCS). To evaluate the differential expression of tear cytokines and pH values between different ocular surface disorders. To collect the surgical conjunctival specimens from the patients with SLK and conjunctivochalasis. To evaluate the factors inducing mast cell migration and how mast cell is activated in SLK via surgical specimens and cultivated fibroblast.

The DRy eye Outcome and Prescription Study (DROPS) is a large observational multicentre study exploring the 'real world' effectiveness of artificial tears in dry eye disease and determinants of efficacy. The aim is to include at least 635 symptomatic dry eye patients who are prescribed artificial tears. All trainees and fellows in London are invited to become collaborators: collaborators are asked to consent patients, assess signs at baseline, and give patients questionnaires at baseline and 4 weeks (for home completion). In tandem, we are conducting a qualitative review of ophthalmologists' prescribing behaviours for dry eye disease.

To evaluate the therapeutic effects of dermatologic tacrolimus ointment on eyelids to treat refractory vernal keratoconjunctivitis and atopic keratoconjunctivitis.

Diagnosis of patients with microsporiosis relies on pathological findings as well as laboratory detection of the causative organism. The conventional laboratory diagnosis of microsporiosis relies on microscopic visualization of the characteristic V. Corneae organisms. We develop a fully automated molecular platform for detection of Vittaforma corneae among patients with microsporidia keratitis.

The purpose of this project was to analysis the causes, pathogenesis, diagnostic modalities and treatment outcomes of microsporidial keratoconjunctivitis.

Superior limbic keratoconjunctivitis (SLK) was first described in detail as a clinical entity by Frederick Theodore in 1963. The clinical picture of SLK is well documented, but the etiology is still unknown. This project will be conducted into through two parts: one is to investigate the presentation of chemokine receptors on mast cell and matrix metalloproteinases on fibroblasts by immunohistochemistry method from the pathological specimens of SLK patients who received conjunctiva resection as the treatment. The other part is to investigate the mRNA level of those chemokine receptors via reverse transcription - polymerase chain reaction from the conjunctiva collecting form SLK patients.

The ocular surface may be the seat of an inflammatory process in many pathology as vernal keratoconjunctivitis. It has been shown that inflammatory cytokines produced by the cells themselves and the constituent cells of the target organ, are the main factors that cause inflammation. The main objective of our study was to compare the concentration of 40 cytokines in vernal keratoconjunctivitis and in control subjects.