Active clinical trials for "Glaucoma, Open-Angle"

The purpose of this study is to evaluate and compare efficacy and tolerability of the brand-name latanoprost and one of its generic version in subjects with primary open angle glaucoma or ocular hypertension. This randomized, double-blinded, cross-over design study has a 4 months follow-up. There are two periods of 8 weeks. During the first period, subjects put brand-name latanoprost in one eye and the generic version in the other one. In the second period, drops are switched from one eye to the other. There are intraocular pressure measurements (diurnal curves) on day 0 (before treatment), at 8 weeks (at the end of first period) and at 16 weeks (at the end of second period). Variations of intraocular pressure in each eye will be evaluated.

The primary purpose of this study is to investigate the safety and efficacy of bilateral DWT in subjects with POAG or OHT compared to active and sham controls. The secondary purpose of the study is to investigate the durability, repeatability, and does response of the same.

Glaucoma is one of the leading causes of blindness in the world. The key to prevention of visual loss from glaucoma is early detection of the disease or its progression and timely treatment. The proposed study will investigate the role of various tests in improving detection of disease progression in advanced glaucoma. Evaluation of the peripheral field of vision (visual field examination) remains the current standard for detection of progression in glaucoma. However, there is a lot of variability or inconsistency in eyes with advanced glaucoma, which could make it difficult to detect worsening of glaucoma with visual fields. The optic nerve demonstrates significant damage in such eyes and hence oftentimes repeat imaging of the optic nerve head is not helpful for detection of change. Therefore, imaging of the central retina (the innermost sensitive tissue lining the inside of the eye), called macula, has been proposed to supplant imaging of the nerve in eyes with severe glaucoma. The macula aids in detailed central vision. Since the macular retinal neural cells are the last ones to be affected in glaucoma, measurement of macular retinal thickness could provide significant information with regard to the course of glaucoma. In the proposed study, glaucoma patients will be tested and followed with various measurements done with newer versions of optical coherence tomography (OCT) imaging and visual field machines. The patients will undergo repeat imaging and visual field testing every 6 months over the course of 5 years. Rates of change will be estimated. We will explore if changes in various outcome measures derived from imaging are correlated with the corresponding visual field changes in glaucoma, and whether the former can be used as an alternative method for detecting simultaneous or subsequent glaucoma progression. The hypothesis for this proposed research is that macular OCT parameters are valid structural measures that can be used especially in advanced disease to follow the course of glaucoma.

In this Pilot explorative study, the investigators are going to estimate and compare the outcomes of three different delivery methods of MMC for Trabeculectomy: a subconjunctival injection of MMC 0.002% at the site of future Trabeculectomy two to four weeks before the surgery, a subconjunctival injection of MMC 0.01% intraoperatively and topical sponge applied MMC 0.02% intraoperatively (typical use) in patients with Primary Open Angle Glaucoma who did not have any filtering surgeries before. After obtaining informed consent from the patients, the patients are randomly divided into three groups via a block randomization method: Group A receives 0.1 mL MMC 0.002 % (0.1mL MMC 0.02mg/mL) subconjunctival injection preoperatively in superior conjunctiva at the site of future Trabeculectomy surgery. Group B receives 0.1mL MMC 0.01% subconjunctival injection intraoperatively at the site of Trabeculectomy and Group C receives conventional sponge delivery of MMC 0.02% intraoperatively. To avoid observer bias during postoperative evaluation of results, IOP staff obtaining measurements of IOP will be masked to the randomization allocation. All groups undergo conventional Trabeculectomy surgery (fornix-based) as scheduled, and the same routine follow up and post-op regimen will be scheduled for all three groups. Patients are routinely visited in the clinic at first day postoperatively, one week (+/-2 days), one month (+/-1 week), three months (+/-2 weeks), six months (+/-3 weeks) and finally at one year (+/-(4 weeks)). In each of these visits we will be assessing: Visual acuity, intraocular pressure, number and type of glaucoma medication, slit lamp examination of the anterior segment and fundus examination.

The purpose of this study is to demonstrate that the rate of clinically relevant complications associated with CyPass Micro-Stent placement and stability using the CyPass 241-S applier, as determined at 36 months in the postmarket setting, is less than the pre-specified performance target, which is based on experience with the CyPass Model E applier in COMPASS trial TMI-09-01 (NCT01085357).

The purpose of this study is to evaluate the additive intraocular pressure (IOP) lowering effect of Brinzolamide 1%/Brimonidine 0.2% (SIMBRINZA®) dosed twice daily (BID) when added to Travoprost 0.004%/Timolol 0.5% (DUOTRAV®) in subjects with open-angle glaucoma or ocular hypertension.

The purpose of this study is to obtain genetic data on a well-defined population of patients with glaucoma that had accurate measurements of rates of structural and functional change over time. The investigators aim to recruit 5,000 patients for Phase I and 100 patients for Phase II over a period of 2 years for obtaining blood samples which will be processed for extraction of DNA and genotyping. Phase II also includes eye examination. Patients will be selected from the Duke Glaucoma Registry (DGR) database and will be contacted by phone, mail or email using a standardized script and procedure. Data analysis, based on patient-blind (no personal health information) data will take place at Duke and Genentech. No protected health information (PHI) will leave Duke. Standard statistical methods will be used to analyze the collected data and to develop predictive statistical models for fast progression in glaucoma. Risks from participating in the study are low and include loss of confidentiality and inherent issues related to drawing blood.

To prospectively assess the clinical effect of ab-interno transluminal viscoelastic delivery and trabeculotomy performed with the OMNI Surgical System in pseudophakic eyes on intraocular pressure (IOP) and the use of IOP-lowering medications in patients with open angle glaucoma (OAG).

First, to compare safety and effectiveness outcomes for canaloplasty and trabeculotomy using the OMNI Surgical System to implantation of the iStent inject in lowering intraocular pressure (IOP) in pseudophakic eyes with open angle glaucoma (OAG), and second, to compare safety and effectiveness outcomes for canaloplasty alone (using the OMNI Surgical System)to implantation of the iStent Inject in lowering IOP in pseudophakic eyes with OAG.

the general purpose of the study is to evaluate the potential beneficial effects of supplementation of a fixed combination of Citicoline 500 mg plus Homotaurine 50 mg on retinal ganglion cells (RGCs) function in subjects with glaucoma by pattern electroretinogram.