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The purpose of this study is to better understand the processes involved in the development of various eye conditions, such as uveitis, disorders of the conjunctiva, cornea, vitreous and retina, metabolic or genetic eye diseases or eye tumors, in order to develop better methods of diagnosis and treatment.
Patients who require eye surgery to treat an eye disease or other disease in which the eye is involved may participate in this study. Samples of eye tissue and fluid that are normally removed and discarded during eye surgery will instead be given to researchers for study. The tissues will be examined under microscope and studied using sophisticated chemical and biological tests. Immune cells from blood samples may also be examined. These studies will help better understand and diagnose the various eye diseases and to develop more attractive therapies.
The purpose of this project is to diagnose and evaluate ocular and related tissues with various diseases such as conjunctival, corneal, uveal, vitreoretinal and optic nerve disorders, ocular degenerative, metabolic or genetic diseases and tumors. These will be studied using light microscopy, electron microscopy, confocal microscopy, immunohistochemistry, molecular pathological including polymerase chain reaction and in situ hybridization, as well as measuring the functions of cellular organelles, e.g., mitochondrial function. Lymphocytes in the peripheral blood as well as other involved biopsied tissues and ocular tissue will be compared and categorized by disease. Cytokines, chemokines or growth factors in the blood and ocular fluids will be also analyzed. Elucidating the relationship between the infiltrating cells, ocular resident cells, and their products in various diseases will help us to make diagnoses and increase our understanding of human ocular disorders.
National Institutes of Health Clinical Center, 9000 Rockville Pike
National Institutes of Health Clinical Center (CC)
Published on BioPortfolio: 2014-07-23T21:58:45-0400
This study aims to profile the ocular surface inflammation of chronic Graft-Versus-Host Disease patients by investigating conjunctival cells, and clinical imaging for conjunctival redness ...
To compare the efficacy of rotational narrow strip conjunctival graft to full conjunctival graft in primary pterygium excision. Risk analysis of factors that may affects the recurrence rat...
To evaluate the use of cultivated conjunctival epithelial equivalents for the treatment of ocular diseases
The purpose of this study is to investigate the safety and efficacy of human conjunctival epithelial autologous cultivated ex vivo for reconstruction of the ocular surface in patients with...
Pterygium is a fibrovascular wing shaped encroachment of conjunctival fold on to the cornea with elastotic degeneration of a subconjunctival tissue, The standard treatment for pterygium is...
Malignant melanoma predominantly occurs in whites, and is potentially fatal. Distant metastases often occur in lung, liver, brain, and could occur without prior regional disease. Conjunctival melanoma...
The use of a conjunctival retractor that expands a small incision in the conjunctiva/Tenon's capsule facilitated the performance of strabismus surgery through a fornix incision. A wide field of exposu...
Impression cytology (IC) is a technique which permits the retrieval of the outermost layer of ocular surface cells via the use of various types of filters. It is a minimally invasive method of evalua...
Purpose/Aim of the study: The corneal and conjunctival epithelium interact with each other and reciprocally modulate the levels of soluble mediators to maintain balance in the ocular surface. The aim ...
Conjunctival microcirculation imaging provides a non-invasive means for detecting hemodynamic alterations due to systemic and ocular diseases. However, reliable longitudinal monitoring of hemodynamic ...
Corneal and conjunctival dryness due to deficient tear production, predominantly in menopausal and post-menopausal women. Filamentary keratitis or erosion of the conjunctival and corneal epithelium may be caused by these disorders. Sensation of the presence of a foreign body in the eye and burning of the eyes may occur.
A chronic blistering disease with predilection for mucous membranes and less frequently the skin, and with a tendency to scarring. It is sometimes called ocular pemphigoid because of conjunctival mucous membrane involvement.
An infection of the eyes characterized by the presence in conjunctival epithelial cells of inclusion bodies indistinguishable from those of trachoma. It is acquired by infants during birth and by adults from swimming pools. The etiological agent is CHLAMYDIA TRACHOMATIS whose natural habitat appears to be the genito-urinary tract. Inclusion conjunctivitis is a less severe disease than trachoma and usually clears up spontaneously.
Tumors or cancer of the CONJUNCTIVA.
Diseases involving the CONJUNCTIVA.
Ophthalmology is the branch of medicine that is devoted to the study and treatment of eye diseases. As well as mild visual defects correctable by lenses, ophthalmology is concerned with glaucoma, uveitis and other serious conditions affecting the eye, ...