Active clinical trials for "Glaucoma"

Sturge weber's syndrome is an oculcutaneous syndrome, ocular manifestations may include heamangioma in the eye lids, choroidal heamangioma, or glaucoma, the glaucoma may present at infancy and may be due to resistance to aqueous outflow through trabecular meshwork(1), it may develop later and this is due to episcleral venous raised pressure.(2-3) Glaucoma associated with Sturge weber syndrome is difficult to be treated medically with high risk of complications when treated with bleb -based surgeries. Suprachoroidal hemorrhage or detachment is a challenging complication which must be encountered. The usage of Ahmed valve in the management of glaucoma associated with Sturge weber syndrome is a bleb based procedure carries the risks of over filtration or encapsulation and decreased filtration with failure to control glaucoma. The use of Ahmed valve in the management of pediatric glaucoma associated with Sturge weber syndrome has better results as recorded by Nassiri et al. Ahmed valve implantation can have some drawbacks such as pupillary irregularity, lens opacification, or encapsulation.(4-7) Glaucoma drainage devices such as Ahmed valve, Molteno or Braeveldt valve can be used when other methods of treatment fail, they provide alternative pathway to the aqueous to be collected in a plate positioned under the conjunctiva, (8-10) Encapsulation is a major problem occurs around the end plate due to fibrous reaction and so the drainage of the aqueous is decreased , Epatein (11) attributed that to fibro vascular proliferation in the episcleral tissue .the fibrous reaction is multifactorial , it may be due to the size of the end plate, the biomaterial, design or the shape of the plate. The use of drainage devices with advanced drug delivery system can improve the success of drainage device. A double-layered porous coating for Ahmed glaucoma valves based on biodegradable poly(lactic-co-glycolic acid) (PLGA) was described by Ponnusamy et al. [12] to produce continuous release of antifibrotic agents [mitomycin C (MMC) and/or 5-fluorouracil (5-FU)] to the subconjunctival space. This release continue for about one month with decreasing fibrosis, the nanofiltration membrane could entrap the proteins passing out from the anterior chamber leading to minimal increase in aqueous resistance.(12-13)

Prospective, multicenter, single-arm study of the iStent infinite in adult pseudophakic or phakic subjects with mild to moderate primary open angle glaucoma who have not failed conventional medical and surgical treatment

The purpose of this study is to assess whether endoscopic cyclophotocoagulation added to cataract surgery lowers intraocular pressure more than cataract surgery alone in patients with normal tension glaucoma.

The main goal of this study is to assess the severity of postoperative corneal astigmatism induced by implantation of the XEN Gel Stent compared to that induced by traditional filtering surgery (trabeculectomy and GDDs). Corneal astigmatism can be assessed using corneal topography, a non-invasive tool which provides an accurate estimate of corneal curvature in all meridians. To the best of our knowledge, no study has yet attempted to quantify the amount of astigmatism induced by the XEN Gel Stent.

This study is designed to determine how well patients with glaucoma can see following cataract surgery with a special type of lens called an extended-depth-of-focus (EDOF) lens. This lens is intended to reduced the patients need for glasses following cataract surgery. Patients will also undergo a minimally invasive type of glaucoma surgery using a special type of stent to reduce eye pressure, with the goal of better glaucoma control and the reduction in the need for medications to control eye pressure.

A study of the Streamline Surgical System versus competitor

This study is looking at changes in vision and visual function before and after a six month trial of a daily medical food called GlaucoCetin, formulated with ingredients to support and protect the optic nerve cells. Open angle glaucoma patients will be randomized to receive either a placebo or the medical food for 6 months. We hope to learn if this medical food can improve the vision of our glaucoma patients and to report the findings obtained to the general public.

Adult subjects with elevated intraocular pressure who have successfully undergone placement of iStent infinite trabecular bypass system will be randomized to receive a travoprost intraocular implant or receive a sham procedure and be followed for 12 months.

This randomized clinical trial aims to compare the diagnostic performance of two AI-enabled screening strategies - ROTA (RNFL optical texture analysis) assessment versus optic disc photography - in detecting glaucoma within a population-based sample. Secondary objectives are to (1) compare the diagnostic performance of ROTA AI assessment versus OCT RNFL thickness assessment by AI, and ROTA AI assessment versus OCT RNFL thickness assessment by trained graders, (2) investigate the cost-effectiveness of AI ROTA assessment for glaucoma screening, and (3) estimate the prevalence of glaucoma in Hong Kong.

This study aims to develop a training course for screening glaucoma using fundus images obtained during diabetic retinopathy screening by non-physician graders. The study also aims to test this training course among non-physician graders in Vietnam