View clinical trials related to Glaucoma.
Filter by:Glaucoma, progressive optical neuropathy, is the leading cause of irreversible blindness in the world. Glaucoma treatment aims to lower intraocular pressure (IOP) by using medication, laser and surgery. Patients suffering from refractory and advanced glaucoma with impaired visual field who are not good candidates for surgery, cadenced subcleral transscleral cyclophotocoagulation (CPCTSI) is commonly used to reduce IOP. The CPCTSI consists in delivering short bursts of energy (in cycle) to the ciliary body, thus reducing production of aqueous humor. The energy gusts develop sequentially to a photocoagulating state in the pigmented epithelium. They are spaced by rest periods that allow surrounding tissue to cool down and remain below photocoagulative threshold, thus avoiding damage to surrounding tissue. Some studies have shown that the risk of complications increases with higher energies. Complications associated with CPCTSI include prolonged intraocular inflammation, pain, intraocular hemorrhage, hypotonia, phthysis, decreased vision and sympathetic ophthalmia. Severity of these complications depends on collateral damage inflicted on surrounding tissues: ciliary muscles, unpigmented epithelium and stroma of ciliary body. Currently, CPCTSI with a cycle ratio of 25% and 31.3% are used in surgical routine in ophthalmology. Cycle ratio is ratio between duration of gusts and total duration of cycle (gusts and rest periods). At St. Joseph's Hospital, both cycle ratios are used and the choice is operator dependent. However, using CPCTSI with a 25% cycle ratio could have fewer complications while maintaining similar efficacy. To our knowledge, there are no studies comparing these two cycle reports, although they are commonly used in practice. Our objective is to compare the CPCTSI with a cycle ratio of 25% and 31.3%.
The objectives of this study are: - To evaluate the efficacy of Phentolamine Mesylate to lower intra-ocular pressure (IOP) in the treatment of Open-Angle Glaucoma (OAG) and Ocular Hypertension (OHT). - To evaluate the ocular and systemic safety of Phentolamine Mesylate compared to its vehicle. - To evaluate additional efficacy of Phentolamine Mesylate to improve visual performance.
The purpose of this research study is to compare the effect of Latanoprostene Bunod and Timolol on eye pressure and blood vessels of the back of the eye.
The study evaluates the image quality between two OCT devices.
The primary objective of this trial is to assess the safety of ST266 given by non-invasive intranasal trans-cribriform delivery to glaucoma suspect subjects with ocular hypertension, optic nerve cupping, or family history of glaucoma.
The main purpose of this prospective study is to demonstrate the therapeutic equivalence of topical brinzolamide compared with AzoptTM
Optical coherence tomography (OCT) for retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) is done before and after cataract extraction in patients with or without primary open angle glaucoma (POAG)
This study is a prospective comparative, randomized, single center study to assess agreement and precision of the Optos P200TE in comparison to the predicate device in normal subjects, subjects with glaucoma, and subjects with retinal disease.
A retrospective, non-interventional, observational, multi-center, chart review study to be conducted in participants who underwent placement of the XEN 45 Gel Stent as a standalone procedure or in combination with phacoemulsification from 1 January 2014 to 1 October 2015.
This is a randomized, double-masked, parallel-group, multi-center study. Subjects diagnosed with POAG or OHT who meet eligibility criteria at Visit 1 (Screening) will wash out their current topical IOP lowering medication(s), if any. After completing the required washout period, subjects will return for Visit 2 (Baseline, Day 1). Subjects who meet all eligibility criteria at Visit 2 (Baseline, Day 1) will be randomized to receive study medication for up to 6 weeks. Approximately 100 subjects with POAG or OHT will be randomized in a 1:1 ratio to either: - DE-117 ophthalmic solution 0.002% QD (Once Daily) - DE-117 ophthalmic solution 0.002% BID (Twice Daily) This study will consist of a screening period of up to 35 days including a washout period of up to 28 days (+ 7 days window), and a 6-week double-masked treatment period.