View clinical trials related to Glaucoma.
Filter by:To determine the clinical usefulness of a refined third-generation instrument - The Assessment of Ability Related to Vision (AARV) in establishing the amount of disability, charting the detrimental effects of progressive disease and establishing the beneficial effects of treatment
Frequently glaucoma is not controlled with clinical treatment ("eyedrops") or laser surgery to control your eye pressure. If this raised pressure is sustained over a long period of time it can lead to permanent damage to the optic nerve (glaucoma) and in severe cases it can result in blindness. You also have cataracts, an opacification of the natural lens inside the eye that is impairing your vision. To prevent further vision loss due to glaucoma, your doctor has recommended glaucoma filtration surgery to lower your eye pressure, and cataract surgery at the same time to improve your sight. The use of the anti-metabolite (Mitomycin-C) during the operation is currently the drug of choice to improve surgical outcome for glaucoma filtration surgery. Mitomycin-C is a potent antiscarring agent that reduces the amount of scar tissue produced after surgery which leads to better control of eye pressure. Although this potent drug is effective in increasing surgical success, its use is related to a higher risk of post surgical complications, some of which are sight threatening. The Collagen Matrix Implant is a biodegradable implant (absorbed naturally by tissue), made from porcine collagen, which reduces scar tissue formed after glaucoma filtration surgery without the use of Mitomycin-C. This means that you could be less likely to have a failed glaucoma filtration surgery, and consequently, a poor eye pressure control. In addition, the risk of surgical failure may be reduced because with this technique, we will not be using potent drugs. However, the long-term effect of the OculusGenTm implant in glaucoma filtration surgery is not fully known. The aim of the study is to determine whether the OculusGenTm implant can equal the success rate of Mitomycin-C in controlling eye pressure, without the potentially sight threatening complications associated with Mitomycin use. And at the same time, this study aim to determine if the implant can reduce potential complications related to glaucoma surgery when compared to the combined surgery augmented with anti-proliferative agents. This study will recruit 66 subjects from patients attending the Singapore National Eye Centre over a period of 12-24 months.
The purpose of this study is to examine if there is a difference between glaucoma patients having background music and not having background music before visual field testing.
This study was to compare the safety and efficacy of the preservative-free formulation of 0.0015% MK2452 (tafluprost) and preservative-free 0.5% timolol maleate in patients with open-angle glaucoma and ocular hypertension. This study was to demonstrate that the preservative-free formulation of 0.0015% tafluprost is non-inferior to preservative-free 0.5% timolol maleate.
A single-nucleotide polymorphism (SNP) analysis of DNA obtained from peripheral blood of the glaucoma patients and the normal control will be performed to find genetic marker for primary open angle glaucoma.
Objective perimetry can better monitor visual field defects in RP and Glaucoma patients than conventional subjective perimetry.The PLR ( Pupil Light Reflex ) of the short and long wave ratio should be significantly higher in areas of visual field defects in RP and Glaucoma patients.
The purpose of this study is to provide data on the lipid profile of the Tenon's capsule in Human glaucomatous eyes and to establish possible relationships with the short term outcome of filtration surgery.
Objective: The main objective of this study is to evaluate the efficacy of Pascal Laser Iridotomy and Pascal Laser Peripheral Iridoplasty in lowering intraocular pressure and opening up the angles in patients with narrow angles, primary angle closure and primary angle closure glaucoma. The specific objectives are to evaluate the pain and inflammation associated with the procedure and its possible adverse effects on the lens and corneal endothelium. Study Design: Prospective, interventional case series Study Population: Healthy males and females with appositional angle closure aged 21 y/o and above Methods: Potential participants are evaluated by a glaucoma specialist in National University Hospital. If they are identified as having appositional angle closure they are invited to participate in the study and assigned to either iridotomy or iridoplasty depending on the mechanism of angle closure present. Pupil block for Pascal Laser Iridotomy and plateau iris and angle crowding for Pascal Laser Peripheral Iridoplasty. If they agree to participate they will undergo visual acuity, slit lamp examination, intraocular pressure determination by Goldmann Applanation Tonometry, gonioscopy, optic nerve head evaluation by indirect ophthalmoscopy and lens evaluation by LOCS III opacity grading system. Humphrey visual field examination using 24-2 SITA standard algorithm and stereodisc photos will be obtained if not done within the past 12 months. Anterior segment OCT and laser flare meter will also be performed prior to the procedure. Enrolled patients will be divided into 2 groups. The first group will be assigned to Pascal Laser Iridotomy. The primary mechanism of angle closure in this group is pupillary block. The second group will be assigned to Pascal Laser Peripheral Iridoplasty. This group has non-pupil bock mechanisms which include plateau iris or angle crowding. After the laser procedure, follow-up examinations will be done 1 hr post laser, 1 week, 1 month, 3 months and 6 months. Outcome Measures: The primary outcome measures are the intraocular pressure difference pre and post laser and the opening of angles. Secondary outcome measures are pain and inflammation associated with laser procedure, lens and corneal endothelial changes.
Evaluation of the ocular safety and efficacy of a drug delivery system in open-angle glaucoma or ocular hypertension.
Non-interventional study to obtain real life data from the treatment with Xalatan and Xalacom in Germany and to assess the long-term efficacy and tolerability under routine conditions. Data were entered into an electronic case report form.