Active clinical trials for "Keratitis"

In this study Investigators are going to do early amniotic membrane transplantation (AMT) for bacterial keratitis.

The purpose of this study is to determine if there are microbiologic alterations of the ocular surface after hot tub exposure. The study will evaluate the number of microbes before and after hot tub use in order to find out whether hot tub exposure has any change on the organisms present on the ocular surface. Participants will be randomized to dunk or not to dunk their head during their time in the hot tub.

Penetrating keratoplasty (PKP) is an open-sky surgery that fundamentally has not changed for more than 100 years. Because conventional PKP is associated with the potential for the development of devastating complications such as expulsive suprachoroidal hemorrhage and endophthalmitis, we modified the technique to one that is a closed surgery under topical anesthesia with the anterior chamber maintained to achieve favorable results. Topical anesthesia is an attractive alternative to traditional injection local anesthesia since the potentially serious complications associated with retrobulbar and peribulbar anesthesia can be avoided. The closed PKP procedure with the stable anterior chamber essentially changes the open nature of conventional PKP. The advantages, i.e., decreased surgical risks, postoperative complications, and surgical difficulties, make PKP viable in most complicated cases.

Infectious keratitis are favored by the circumstances causing the small trauma of the corneal epithelium, corneal surgery, corneal dryness under health system such as Sjögren's syndrome rheumatoid arthritis, or much more frequently wearing contact lenses. If the majority of infectious keratitis are favourable, some lead to serious injury of the cornea, or even corneal perforation which result an endophthalmitis. This unfavourable evolution may lead to blindness due to corneal damage, the endo-ocular lesions or enucleation of the eyeball. This negative evolution is encountered while the infectious keratitis due to tedious germs of difficult diagnosis such as nontuberculous Mycobacterial, fungal infections, fungal keratitis, amoebic keratitis, and certain viral keratitis. The microbiological diagnosis of routine is based on the systematic search for pathogens tedious from invasive sampling of cornea by vaccinostyle. We set up a new non-invasive corneal swab diagnostic method.

The study is a randomised control trial to assess the visual and clinical outcomes of collagen cross linking in fungal keratitis. Fungal keratitis is a major cause of corneal blindness in India and the therapeutic options available are minimal to handle the advanced complications and sequalae caused by the disease.The antimicrobial and tissue remodeling role of corneal cross linking was demonstrated by several studies earlier,we anted to specifically assess the role of corneal cross linking in non resolving fungal keratitis in prevention of perforation and enhancement of healing process.

The present study was designed to evaluate the treatment of adenoviral corneal opacities with PTK and mitomycin C.

The purpose of this study is to determine if the formation of mucin balls is a marker for protection from inflammatory events to the cornea and if mucin balls play a role in protection during extended contact lens wear.

The aim of this study is to evaluate the effect of preoperative parameters on surgical results in Descemet Membrane Endothelial Keratoplasty (DMEK) surgery.

The aim of this study is to compare the safety, specificity, sensitivity and ease of procedure of two potential diagnostic assays for HSV-1 detection in the cornea. Through the use of this new diagnostic assay, correct and early intervention would not only reduce corneal scarring from HSK, but it would also allow the initiation of appropriate treatment for HSV mimicking keratitis. HSV-1 infection of the eye can result in corneal scarring and blindness. Early diagnosis of this condition and appropriate treatment is of utmost importance. Various ocular surface conditions can mimic herpetic keratitis in their clinical presentation and can result in diagnostic confusion. Inappropriate or delayed treatment of herpetic corneal disease results in increased morbidity. In the UK at present clinical presentation is the mainstay of diagnosis. Unfortunately these cases often present to the most inexperienced clinical staff resulting in variability in diagnostic acumen. This often results in a delay or inappropriate diagnosis of herpetic keratitis. Laboratory techniques presently available to aid diagnosis are infrequently used in clinical practice. There are various reasons for their lack of use. Historically viral culture techniques were the mainstay of investigation but were slow, requiring weeks to provide a result. PCR is now replacing culture techniques and is relatively quick, reliable and sensitive. Many clinicians within the UK are still not fully informed of these advances and are therefore not utilizing these techniques to supplement clinical diagnosis. We propose to investigate the use of topically applied fluorescent antibody against active replicating HSV-1 in a droplet form and real time PCR detection of the virus. If successful this should increase the potential diagnostic capabilities of GPs and other less experienced health care workers. Such tests should reduce variability in diagnosis and the dependency on experienced ophthalmologists to diagnose the condition.

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.