View clinical trials related to Glaucoma.
Filter by:We hypothesize that glaucoma patients demonstrate an impaired retinal vascular response to the flicker stimulus, and that this disturbance is predictive of the progression of glaucomatous damage. The response of a major temporal superior and inferior retinal artery and vein to a 60 seconds 12.5 Hz flicker light stimulation in 50 glaucoma patients, 50 ocular hypertensives and 50 controls (using the Retinal Vessel Analyzer) and to investigate how intraocular pressure relates to neurovascular coupling. In addition, 50 glaucoma patients and 50 ocular hypertension patients will be followed for 3 years for functional (visual field, automated perimetry with Octopus device) and morphological (retinal nerve fiber layer thickness, Optical Coherence Tomography Stratus (OCT) device) glaucomatous damage progression, in order to test the predictive power of the retinal vascular flicker response for glaucoma progression.
Long-term intraocular pressure (IOP) fluctuation may be significantly associated with the progression of glaucomatous visual field loss, even in patients kept always low IOP after triple procedure, an effective approach for patients with coexisting glaucoma and visually significant cataracts.
Glaucoma is a chronic disease defined by characteristic changes in the optic nerve associated initially with loss of peripheral vision and is treated by lowering intraocular (inside the eye) pressure. It has been reported that noticeable changes to the optic nerve caused by glaucoma may occur several years before changes in vision are noticed. Since changes to the optic nerve and other eye structures due to glaucoma are irreversible, it is important to develop tools for the earliest possible detection of changes due to glaucoma. The Heidelberg Retina Tomograph (HRT) is a device that is used to produce a three-dimensional map of the optic nerve and retina, and can be used to detect changes in the optic nerve and retina over time. In previous studies, it has been shown to be useful for the detection of changes due to glaucoma. However, the HRT when compared to other techniques to evaluate the optic nerve such as stereophotography, was found to only somewhat agree. The current study will compare HRT to stereophotography to determine how good each one is at looking and documenting changes in the optic nerve over time due to glaucoma. Using HRT to initiate early topical medication or to change management requires knowing how well HRT results predict the development of visual loss. Accordingly, the results of this study may affect the management of glaucoma patients by optimizing the follow-up of people with this condition and by initiating appropriate and more individualized treatments. Early treatment is crucial for preventing further visual loss in patients with glaucoma or ocular hypertension (high pressure inside the eye).
Selective laser trabeculoplasty (SLT) is a new alternative to anti-glaucoma medications for the treatment of primary open angle glaucoma. After SLT, many patients experience mild to moderate inflammation inside the eye - specifically in the front chamber of the eye (the part in front of the colored part of the eye). This mild front chamber reaction is typically treated with anti-inflammatory agents such as corticosteroids and nonsteroidal anti-inflammatory agents (NSAIDs). Some physicians do not use these agents as they feel they may interfere with the way the laser works to treat glaucoma. Topical (applied to the surface) corticosteroids can cause an increase in the pressure of the eye (intraocular pressure or IOP), cataract formation, or a possible increase in infection with long-term use. These side effects have not been reported to occur with NSAIDs, which are effective in controlling pain after SLT and reducing signs of inflammation such as irritation, swelling, tenderness, and soreness. This research study will compare an NSAID, ketorolac tromethamine 0.4% (Acular LS), with a corticosteroid, prednisolone acetate 1% (Pred Forte), and with a placebo, which contains no active medicine (Refresh Tears). Ketorolac tromethamine 0.4%, prednisolone acetate 1%, and Refresh Tears are all FDA (Food and Drug Administration) approved for use in inflammation after surgery.
To determine if the Barraquer tonometer provides an accurate and reliable measurement of intraocular pressure. The Barraquer tonometer is a device used to safely and painlessly measure intraocular pressure.
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.
To evaluate whether or not using topical steroids after selective laser trabeculoplasty affects intraocular pressure outcomes.
The purpose of this study is to determine whether reducing inflammation of the surface of the eye with topical Restasis after glaucoma surgery will improve surgical outcomes and increase patient comfort.
In the management of glaucoma, as for as in other optic nerve diseases, an important goal of ophthalmologists is represented by the possibility of influencing visual function. In this regard, Parisi et al [Ophthalmology 1999; 106:1126-1134.] suggested the intramuscular treatment with Cytidine-5-diphosphocholine (CDP-Choline or citicoline) to improve glaucomatous visual defects. In particular, recent studies reported the effects of citicoline on glaucomatous retinal and postretinal visual structures evaluated by electrophysiological examinations (PERG and VEP). It was observed that a 2-month period of treatment with citicoline may induce improvement in both ganglion cell function (PERGs with increase in amplitudes and shortening in times-to-peak) and in neural conduction along postretinal visual pathways (VEPs with increase in amplitudes and shortening in times-to-peak). The effects of citicoline on glaucomatous retinal and postretinal structures were not present 8 months after the end of treatment. However, performing several 2-month period of treatment with citicoline during a total period of 8 years, it was found a additional improvement of the glaucomatous retinal and postretinal impairment [Parisi V. Doc Ophthalmol. 2005 Jan;110:91-102). In this work, the investigators aimed to assess whether there similar visual function outcomes can be reached by the oral treatment with citicoline in patients affected by glaucomatous optic nerve disease as of as in other optic nerve diseases (i.e. non-arteritic ischemic optic neuropathy)
The Purpose of This Study is to Determine if Taking an Over the Counter Non-Steroidal Anti-Inflammatory(Ibuprofen)has an Effect on Eye Pressure in Patients using Brimonidine(Alphagan)and Latanoprost(Xalatan) eye drops.