View clinical trials related to Macular Degeneration.
Filter by:Hypothesis: external electrical stimulation of the retina with low level electrical currents improves visual acuity in subjects with age-related dry macular degeneration.
Hypothesis: The use of teleophthalmology for patient screening will result in more rapid patient access for treatment. The use of teleophthalmology to monitor patients with wet AMD post-treatment will result in maintenance of good visual outcomes combined with a reduction in patient travel and improved patients satisfaction in a cost effective manner. Objectives : The Evaluation of Teleophthalmology in AMD project objectives are as follows: 1. To evaluate the efficacy of teleophthalmology in screening patients referred to retina specialists for suspected wet AMD. 2. To compare the "time to treatment/retreatment" with this program with that of patient's entering the system and being followed conventionally to determine the efficacy of teleophthalmology to provide rapid entry/re-entry into treatment programs. 3. To determine the efficacy of teleophthalmology in monitoring patients with wet AMD post therapy. 4. To determine the compliance rate for monitoring wet AMD during follow-up utilizing teleophthalmology. 5. To evaluate the cost effectiveness of teleophthalmology in screening/monitoring wet AMD patients including direct costs to the OHIP system and indirect costs to the patient/caregiver. 6. To assess patient satisfaction with teleophthalmology versus standard clinical care in the monitoring of post-treatment wet AMD. 7. To evaluate teleophthalmology as a tool for communication between community based Optometrists /Ophthalmologists and Retina Specialists.
Ranibizumab (Lucentis) is currently the best treatment for wet Age-Related Macular Degeneration (AMD). To work, the drug must be injected by means of an intravitreal injection (IVT) into the vitreous (jelly-like material) cavity in the back of the eye, repeatedly at intervals ranging from one to several months. Endophthalmitis is a rare but devastating infection of the eye that occurs in approximately 0.2% of patients after IVT injection. Many ophthalmologists ask patients to use antibiotic eye drops after IVT injection in the hope that this may reduce the risk of endophthalmitis. There is no proof that this happens and there is a possible risk that repeated exposure to the same antibiotic may cause antibiotic resistance organisms (bacteria) to develop over time. The investigators hypothesize that repeated exposure to antibiotic during the initial stages of treatment for AMD will result in a progressive shift in the conjunctival flora with an increasing number of antibiotic resistant organisms appearing over time. If this is demonstrated, changes to the prevailing treatment approach will be needed to reduce the long term risk of a patient developing antibiotic resistant endophthalmitis during treatment.
This study was conducted because the FDA requested clinical information on potential effects of intravitreal injections of Macugen (pegaptanib sodium injection) on the corneal endothelium from a 1-year (minimum) post-approval clinical study to support that there are no adverse effects on the corneal endothelium following intravitreal injections of Macugen.
The purpose of the study is assess safety, bioactivity, and maximal tolerated dose of repeated weekly intravenous infusion of combretastatin A-4 phosphate (CA4P) in patients with neovascular age-related macular degeneration
Ranibizumab has been proven to be effective in large multicentre studies. However, the injections have to be repeated monthly. A combined therapy with the established photodynamic therapy might even be more effective, less intravitreal injections might be necessary due to a synergistic effect. The study will be conducted to explore whether intravitreal ranibizumab in monotherapy or in combination with verteporfin photodynamic therapy under a new time regime is an effective, safe and convenient treatment for patients with subfoveal Choroidal Neovascularisation (CNV) secondary to Age-Related Macular Degeneration (AMD).
Background: - The Age-Related Eye Disease Study 2 (AREDS 2) is looking at different eye diseases. Study participants will provide blood and saliva samples. The samples will be stored for research on eye diseases. Objectives: - To collect blood and saliva samples for AREDS 2 research. Eligibility: - AREDS 2 research study participants. Design: - Participants will provide blood and saliva samples. - The samples will be submitted with personal and medical information. This information will be collected during the AREDS 2 procedures.
The investigators believe that oxygen saturation measurements in the retina may provide more information on how well the retina is working and may detect problems in the retina earlier than the fundus fluorescein angiography (FFA). This may be useful to an ophthalmologist so that they may identify abnormal areas of the retina and commence or change the treatment so that they may prevent irreversible blindness. Most patients with clinically significant macular oedema and/or ischaemic diabetic retinopathy could have either laser or Intravitreal Anti-VEGF injection treatment provided they are counseled about the risks. It is known the Anti-VEGF injections reduce oedema and it is believed that laser treatment of the retina in this condition improves the oxygen supply to the retina and sometimes reverses the damage. It will be useful to take pictures of these treated eyes using the Oxymap spectral retinal camera(s) to see whether the investigators can detect a change in the oxygen saturation in the retina before and after treatment using our oxygen saturation methods.
Using an adaptive optics imaging device, retinal structures are observed in healthy and diseased subjects.
50 Patients with recalcitrant exudative age-related macular degeneration with a history of retinal or subretinal fluid after multiple intravitreal injections with ranibizumab 0.5mg and subsequently treated with ranibizumab 2.0mg, who are incomplete responders to 2.0mg of ranibizumab.