View clinical trials related to Glaucoma.
Filter by:The investigators have completed a study in which the investigators examined the response of the retinal circulation to changes in posture from sitting to lying down in patients with Normal Tension Glaucoma (NTG). This alteration in position produces changes in the local blood pressure at the entrance to the retinal vasculature. In a healthy retina, the vasculature adapts by dilating and constricting in order to maintain a steady blood flow rate. In an eye with NTG, this often does not occur. Upon analysis at the completion of the study , the investigators found that the patients who had been taking Alphagan (brimonidine) during the study did not exhibit the blood flow increases typical of NTG while lying down; instead, they maintained a steady blood flow rate as did the group of healthy control subjects. The investigators primary objective is to now demonstrate in a prospective study that Alphagan can restore retinal vascular autoregulatory function in patients with NTG who do not autoregulate. The investigators will also determine the effect of Alphagan treatment on the patients' ability to detect motion.
This study will evaluate the safety and efficacy of bimatoprost 0.03% formulation B ophthalmic solution with LUMIGAN® (bimatoprost ophthalmic solution 0.03%) once daily for 12 weeks in patients with glaucoma or ocular hypertension
This study is to evaluate the long-term safety, effectiveness and clinical experience of the CyPass Micro-Stent in patients with glaucoma.
Bimatoprost has been shown to provide effective IOP lowering in patients of all races. Conversely, travoprost has been shown to be more effective in black patients than in Caucasians in some studies. However, Noecker et al 2004 compared bimatoprost with travoprost in African-Americans with glaucoma or OHT, and found that bimatoprost was more likely than travoprost to achieve target pressure at 3 months. These racial differences in efficacy of these medications warrant further investigations. The investigators study aim to compare the IOP-lowering efficacies of bimatoprost and travoprost in an Egyptian population with primary open-angle glaucoma (OAG) or ocular hypertension (OHT).
Laser trabeculoplasty is a routine treatment for glaucoma and can be performed with either argon (ALT) or selective Yag (SLT) lasers. The effectiveness of each has not been studied in patients under 60 years, which is younger than average for the procedure. The study hypothesis is that there will be no difference between the two laser types.
The purpose of this study is to investigate if changes in ocular signs and symptoms occur in patients with ocular hypertension or glaucoma when they switch from latanoprost 0.005% (Xalatan) to preservative free Tafluprost eye drops.
The purpose of this study is to evaluate the safety and efficacy of the CyPass Implant for lowering intraocular pressure (IOP) in patients with glaucoma who undergo cataract surgery.
The purpose of this study is to evaluate if critical flicker fusion is a more reliable method for detection of early glaucoma compared to automated visual fields in comparison to subjects without evidence of glaucoma or optic nerve disease.
This study will evaluate the safety and efficacy of once daily administered 0.03% Bimatoprost/0.5% Timolol Ophthalmic Solution compared with once daily administered 0.03% Bimatoprost Ophthalmic Solution and once daily administered 0.5% Timolol Ophthalmic Solution concurrently in patients with open-angle glaucoma or ocular hypertension
The purpose of this study is to evaluate performances of each parameters of spectral domain (Cirrus) optical coherence tomography for distinguishing between normal eyes, glaucoma suspect and glaucomatous eyes