View clinical trials related to Glaucoma.
Filter by:It is suggested the pathogenesis of normal-tension glaucoma (NTG) involves vascular dysregulation. In the past studies, it is well documented that many physical problems related to vascular dysregulation, such as angina pectoris (Friedman M et al 1974; Russek HI et al 1976), migraine (Diener HC et al 1994), primary Raynaud's disease (Wagner HH et al 1993) and stroke (Gainotti G, et al, 2001; Hayee Ma et al 2001), are associated with a high risk of depressive illness. So, NTG, being a disease involving vascular dysregulation, is postulated to be associated with psychopathology. Glaucoma increases after 40 year-old and the number of people over this age in Hong Kong is rapidly growing. However, we have no knowledge about the link between psychopathology and NTG in Hong Kong. The present study is sought to overcome the limitation in previous research and the goals of present study are: - To identify the prevalence of psychopathology of normal-tension glaucoma Hong Kong Chinese Out-patients attending a university-affiliated glaucoma clinic. - To determine whether there are any differences among NTG patients, patients with glaucoma other than NTG and control in terms of psychopathology and quality of life. Designs: Case-control study to compare among patients with normal-tension glaucoma (NTG), patients with glaucoma other than normal-tension glaucoma (OTNTG) and control in terms of psychopathology and quality of life
The purpose of this study is to evaluate the safety and efficacy of the iStent trabecular micro-bypass stent in reducing intraocular pressure (IOP) in subjects with open-angle glaucoma or ocular hypertension and co-existing cataract.
To obtain demographic and baseline ophthalmic parameters (such as Intraocular Pressure profiles, disc morphological characteristics, central corneal thickness, peripapillary retinal nerve fibre layer thickness and its serial changes, visual field changes, severity of any medical associations—e.g. hypertension, migraine, strokes, silent cerebral infarcts) with non-invasive measurements, in Chinese Patients with Normal Tension Glaucoma
The purpose of this study is to determine whether the ologen (OculusGen) Collagen Matrix is effective and safe to implant as an aid of glaucoma and pterygium surgeries.
The purpose of this study is to determine whether the OculusGen Collagen Matrix are effective and safe to implant as an aid of glaucoma surgery.
The purpose of this study is to determine whether the OculusGen Collagen Matrix is effective and safe to implant as an aid of glaucoma and pterygium surgeries.
The purpose of this study is to evaluate the safety, efficacy, and duration of effect of a single administration of Anecortave Acetate Depot for treatment of elevated intraocular pressure (IOP) in patients with open-angle glaucoma.
Low-pressure (normal tension) glaucoma is a type of open-angle glaucoma resulting in damage to the optic nerve and abnormalities of the visual field. Eye (intraocular) pressure in this type of glaucoma is not higher than that usually considered to be normal (less than 21 mmHg) for the eye. The present treatment of low-pressure glaucoma is also directed to lowering the “normal” eye pressure. Both medications in this study, brimonidine and timolol, lower eye pressure. Laboratory research over the past decade indicates the potential to treat glaucoma not only by lowering eye pressure, but with treatments aimed at the damage occurring at the optic nerve. One group of drugs, selective alpha2-adrenergic agonists, have been shown in laboratory animals to protect against the effects of nerve damage following local stroke. Brimonidine, one of the medications in the current study, is a selective alpha2-adrenergic agonist which protects against damage to optic nerve in animal models of glaucoma.. The hypothesis of the present study is that brimonidine eye drops provide protection to the damaged optic nerve independent of lowering eye pressure in patients with low-pressure glaucoma. This will be determined by (1) measuring eye pressure, (2) performing visual field examinations, and (3) examination of the optic nerve.
The purpose of this study is to determine whether a glaucoma therapy is safe and effective in treating patients with open-angle glaucoma or ocular hypertension.
The purpose of this study is to determine whether a glaucoma therapy is safe and effective in treating patients with open-angle glaucoma or ocular hypertension.