Active clinical trials for "Retinal Diseases"

Retinopathy of Prematurity (ROP) screening is one of many potentially painful diagnostic and therapeutic procedures performed routinely on preterm infants in the Neonatal Intensive Care Unit. Therefore strategies for stress reduction and pain management are essential to promote growth and development and minimize long-term sequelae. Procedural analgesia should include concepts of developmental care, non nutritive suck (NNS), pharmacological and non-pharmacological agents. Sucrose is thought to stimulate the body's activation of lingual sweet taste receptors and release of endogenous opioids, when combined with NNS, non-opioid mechanisms are also activated. The administration of sucrose or the combination of sucrose and non-nutritive sucking is one of the most frequently studied non-pharmacological interventions for relief of pain in neonates and oral sucrose has been shown to be an effective and safe therapy for common neonatal procedures such as heal lance, blood-letting and venepuncture. There is conflicting evidence on the benefit of sucrose in ROP screening. Therefore the purpose of this study is to determine the efficacy of sucrose combined with NNS as a potential regime for reduction of pain associated with retinopathy of prematurity screening.

The purpose of this study is to determine the safety and tolerability of MS-R001 at escalating doses in patients with diabetic macular edema secondary to diabetic retinopathy

The purpose of the study is to evaluate intravitreal injection of triamcinolone acetonide after laser panretinal photocoagulation in the treatment of proliferative diabetic retinopathy.

Vitreoretinal surgery for epiretinal proliferation tractional retinal detachment associated with proliferative diabetic retinopathy (PDR) is often complicated by hemorrhage from fibrovascular tissue. To control the bleeding during tissue dissection multiple measures and techniques are used. Bevacizumab is an anti VEGF antibody which has been used to induce regression of ocular neovascularization. Its intraocular injection has been increasingly used for treatment of choroidal neovascularization (CNV) associated with age related macular degeneration (AMD) with fairly good success.Also it has been shown to be effective for treatment of PDR complicated with vitreous hemorrhage and iris neovascularization. We hypothesized that if anti-angiogenic agents, such as bevacizumab are injected into the vitreous cavity before vitrectomy in cases of PDR; there may be partial regression of neovascularization resulting in less intraoperative (and postoperative) hemorrhage. This can make the operation easier and shorter and lessen the need for intraocular cautery.. In this study diabetic patients who are candidated for vitrectomy with similar complexity scores will be randomized to preoperative injection or no injection of 2.5 mg Bevacizumab .In the injection group, 2.5 mg of bevacizumab (0.1 ml of commercially available Avastin vial, Genentech, inc. South San Francisco, CA) will be injected into the vitreous 3-5 days before operation. During each operation, the number of endodiathermy applications, backflush needle applications and the duration of surgery will be recorded by an independent observer. Also, type of tamponade, post operation vitreous hemorrhage and 3 months postoperative visual acuities wil be recorded. all these parameters will be compared in two groups.

The purpose of this study was to determine the safety of ranibizumab: a) as a surgical adjunct during cataract surgery in subjects with proliferative diabetic retinopathy (PDR) induced rubeosis and, b) in treatment of proliferative diabetic retinopathy (PDR).

The purpose of this study is to test whether ACULAR, a nonsteroidal anti-inflammatory eye drop medication, can prevent the development of retinopathy of prematurity (ROP) and/ or decrease its severity.In this study ACULAR will be compared to a placebo (artificial tear). The hypothesis would be that ACULAR treatment will decrease the incidence of moderate to severe ROP (grade II and above)by 50%.

The primary objective of the proposed study is to show that inhaled equimolar mixture of oxygen and nitrous oxide (EMONO) will reduce pain associated with retinal exam in the preterm infant, as compared to the current standard treatment (oral sucrose and topical anaesthesia). The investigators also aim to show that EMONO can be used safely in preterm neonates undergoing retinal exam, and will not result in any increase in apnea, bradycardia, or desaturation in the 24 hours following the exam. Finally, the investigators aim to show that EMONO will keep the infant calm, and make retinal examination easier and less traumatic.

The purpose of this study is to determine the effect of pre- and intra-operative bevacizumab injection on postoperative vitreous hemorrhage after diabetic vitrectomy.

The purpose of this clinical research study is to evaluate the safety and effectiveness of an investigational medication to treat macular edema that persists despite current treatment methods. Participants will be evaluated for improvement in vision and side effects. Macular edema is a condition that affects the back of the eye (retina). It frequently occurs in people who have a history of diabetes, and is also associated with high blood pressure, uveitis, and previous eye surgery. The main symptom of macular edema is decreased vision, generally a blurring of central vision. There are no direct costs to participants for assessments and treatment as defined in the study protocol. All candidates must be available for required scheduled visits during the trial's 6-month follow-up period. Although the disease called age-related macular degeneration (AMD) affects the same region of the eye as macular edema, they are not the same condition and AMD is not studied in this research trial.

To evaluate the effectiveness of both argon laser photocoagulation and aspirin therapy in delaying or preventing progression of early diabetic retinopathy to more severe stages of visual loss and blindness. To help determine the best time to initiate photocoagulation treatment in diabetic retinopathy. To monitor closely the effects of diabetes mellitus and of photocoagulation on visual function. To produce natural history data that can be used to identify risk factors and test etiologic hypotheses in diabetic retinopathy.