View clinical trials related to Glaucoma.
Filter by:- Transcleral cyclophotocoagulation (TSCPC) has long been used as refractory glaucoma management and is very easy to learn and easy to perform. - Recent advances in laser technology; the role of TSCPC is being expanded because it has benefits of noninvasive glaucoma procedure. - The titration (pops), the fixed high-energy, and the fixed-low energy (slow-coagulation) are three energy delivery techniques. - The present study would report on the outcome (efficacy and safety) of the slow-coagulation versus the titration method in treatment of refractory glaucoma with dark iris. - The results would provide reliable evidences to supplement clinical judgment when making a decision in favor of each treatment method for glaucoma patients.
Interplay between the increasing IOP and decreasing blood pressure (BP) during the 24-hour period, especially in the nocturnal period, may lead to insufficient perfusion pressure of the optic nerve and contribute to the glaucomatous damage in adjunct to the antero-posterior vectorial mechanical impact on the lamina cribrosa, the translaminar pressure. Patients with progressive VF loss showed greater nocturnal BP dips than patients with stable VF. Reduced mean intraocular perfusion pressure (IOPP) was significantly associated with the extent of glaucomatous damage. How the nycthemeral IOP fluctuation influences glaucoma progression has not been studied in a prospective manner and remains to be elucidated. The purpose of this study is to assess the relationship between the 24-hour IOP fluctuation pattern and the 24-hour BP pattern in patients with primary open angle glaucoma (POAG). IOP fluctuations will be monitored with SENSIMED Triggerfish®, a portable investigational device using a contact lens sensor that monitors the IOP fluctuation continuously over 24-hours.
Selective laser trabeculoplasty (SLT) is an increasingly popular treatment modality in early-to-moderate glaucoma patients. SLT has been suggested to reduce IOP more consistently during the nocturnal period than during the diurnal period in a group of medically-treated patients with primary open angle glaucoma (POAG). At present, there is scarce data on SLT effects on the 24-hour IOP pattern in patients with glaucoma and there is no data on the 24-hour effect of SLT in untreated glaucoma patients. The purpose of this study is to assess the changes of IOP over a 24-hour period in patients with glaucoma undergoing SLT.
Primary open angle glaucoma (POAG) is associated with inadequate drainage of the aqueous humor via the trabecular meshwork through the Schlemm's canal towards the systemic circulation. This may lead to an increase in IOP and may damage the optic nerve. The purpose of glaucoma management is to lower IOP in order to prevent progression of the optic neuropathy and subsequent visual loss. Firstline treatment usually includes IOP-lowering drug therapy. However, if IOP remains uncontrolled and/or the optic nerve damage progresses despite controlled IOP, surgery may be indicated. Deep sclerectomy (DS) is a non-penetrating surgical procedure for the treatment of open angle glaucoma that allows the enhancement of the aqueous outflow by removing part of the inner wall of Schlemm's canal and trabecular meshwork. DS was shown to achieve a good control on IOP over the long term. The purpose of this study is to assess the 24-hour IOP fluctuation profile recorded with Triggerfish in patients with POAG before and after DS.
The aim of the study proposed in Dijon is above all to focus on the possible relationship between age-related ocular pathologies (AMD and glaucoma) and et les degenerative neurological and cardiac pathologies. The principal objective is to seek in subjects who have undergone cerebral MRI and echocardiography, associations between the thickness of postganglionic fibers measured by Optical Coherence Tomography at the 7th year (n=1500) and signs of cerebral impairment (psycho-cognitive tests, circulation time, MRI signs). This association will be studied after taking into account the principal environmental (particularly dietary) and genetic risk factors.
Trabeculectomy is the gold standard procedure for the surgical treatment of glaucoma. Antimetabolites such as mitomycin-C (MMC)are widely used as an adjunctive during surgery to prevent scarring of the bleb. MMC has the risk for creating thin bleb walls, avascular blebs, and increased risk to infection, blebitis and endophthalmitis. Recently, a biodegradable porous collagen-glycosaminoglycan copolymer matrix implant (Ologen), has become available for glaucoma surgery.Although a few studies on filtering surgery with Ologen implantation have been performed, there is yet no conclusive evidence on effectivity and safety with Ologen implantation when compared to trabeculectomy with MMC. This is a prospective intervention pilot study to determine the degree of intraocular pressure (IOP) lowering of trabeculectomy with Ologen implantation in comparison to trabeculectomy with MMC. Additionally, the safety (per- and postoperative complications) of the two procedures will be compared. The study hypothesis is that trabeculectomy with Ologen will be a safer procedure than trabeculectomy with MMC, but probably at the cost of a less potent IOP lowering.
In participants with a diagnosis of open angle glaucoma (OAG) or ocular hypertension (OHT), the primary objective is to demonstrate that the mean IOP reduction after 3 months of treatment with BOL-303259-X once daily (QD) is non-inferior to timolol maleate 0.5% twice daily (BID). The secondary objective is to demonstrate the superiority of BOL-303259-X QD to timolol maleate 0.5% BID. This assessment will be performed if the non-inferiority of BOL-303259-X QD to timolol maleate 0.5% BID is determined. An open label safety phase will be conducted at the end of Visit 6 (3 months) where all participants will receive BOL-303259-X QD for an additional 3 months.
In participants with a diagnosis of open angle glaucoma (OAG) or ocular hypertension (OHT), the primary objective is to demonstrate that the mean IOP reduction after 3 months of treatment with BOL-303259-X once daily (QD) is non-inferior to timolol maleate 0.5% twice daily (BID). The secondary objective is to demonstrate the superiority of BOL-303259-X QD to timolol maleate 0.5% BID. This assessment will be performed if the non-inferiority of BOL-303259-X QD to timolol maleate 0.5% BID is determined. An open label safety phase will be conducted at the end of Visit 6 (3 months) where all participants will receive BOL-303259-X QD for an additional 9 months.
Long term treatment with anti-glaucomatous drugs has been shown to increase the incidence of dry eye syndrome with all known consequences such as ocular discomfort and epithelial keratitis. Given that thinning of the tear film appears to be a risk factor for the development or the aggravation of dry eye syndrome, the current study seeks to investigate whether tear film thickness is changed after topical treatment with anti-glaucomatous drugs in healthy subjects. For this purpose, tear film thickness will be measured at baseline and after single instillation of one of 5 study drugs in one randomly chosen eye. In addition, one group of 20 subjects will receive no drug and will serve as a second control. Drug effects on tear film thickness will be compared to the fellow, non-treated eye. In addition, effects on tear film thickness of timolol with preservatives (Timoptic 0.5%) will be compared to timolol without preservatives (Timophtal sine 0.5%) and three lubricants with different viscosity (Genteal HA, Hylo-Comod, Thealoz).
1. To evaluate a educational intervention promoting acceptance of comprehensive eye examination in rural Guangdong. 2. To evaluate the impact of acceptance of comprehensive eye examination in rural Guangdong.