Vision loss refers to a reduction in the ability to see that cannot be corrected with standard glasses or contact lenses. Clinical trials in this area explore a wide range of interventions aimed at preserving or improving remaining vision, assessing ...
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Found 482 Actively Recruiting clinical trials
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Eye disease affects billions worldwide, causing vision problems that impact daily life and productivity. This research focuses on eye health in coastal Bangladesh, a region with high poverty, limited healthcare access, and environmental risks that increase eye disease prevalence. The study evaluates a community-based eye screening program using Artificial Intelligence AI to detect conditions like diabetic retinopathy, glaucoma, cataracts, and age-related macular degeneration, aiming to improve early diagnosis and care in underserved areas. The program offers a twelve-step eye screening process supported by AI-assisted fundus imaging, combined with partnerships among local organizations and healthcare providers. Screening includes community outreach, vision tests, blood pressure and glucose checks, optometrist evaluations, and selective AI imaging for higher-risk individuals based on age, diabetes, hypertension, or symptoms. Patients diagnosed with severe cataracts are offered surgery through local or regional services. The approach integrates data collection, AI analysis, clinical examinations, counseling, and referrals to support comprehensive eye care. Participants aged 35 and older from the Char Fasson sub-district undergo screening and follow-up over several months. The study collects demographic, clinical, and imaging data securely, with informed consent for storing fundus images. Researchers monitor the number of individuals screened and the prevalence of eye diseases. Safety and data privacy are maintained using encrypted systems and compliance with ethical standards. The programs feasibility, cost, and effectiveness in improving eye care accessibility are assessed throughout the study.
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This research aims to compare surgical outcomes and parameters between cataract surgeries performed using a new 3D imaging system called the NGENUITY4 3D Visualization System and the current standard binocular microscope in patients with high myopia. The study focuses on how differences in depth of field between these two systems affect factors during surgery and the results, including potential complications. Participants will have high myopia and significant cataracts requiring surgery. Participants will be randomly assigned to one of two groups one group will undergo cataract surgery using the standard binocular microscope, while the other group will have surgery using the Alcon NGENUITY4 3D Visualization System. During surgery with the NGENUITY system, the surgeon wears 3D glasses and views the operation on a 3D screen. Both groups receive standard cataract extraction with phacoemulsification and intraocular lens implantation. Throughout the surgery, researchers will measure how often and how far the microscope focus is adjusted, the distance needed to focus from the corneal surface to the lens capsule, total operation time, and ultrasound energy used. After surgery, participants will be followed for three months to monitor vision, eye pressure, and any complications. These assessments will occur on day 1, week 1, month 1, and month 3 after surgery to evaluate safety and effectiveness of the two visualization methods.
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Researchers are evaluating the first use of a new imaging technology called 4D Microscope Integrated Optical Coherence Tomography 4D MIOCT combined with a Zeiss Artevo 800 surgical microscope during eye surgeries. This study focuses on adult patients undergoing clinically indicated surgery for various eye diseases, aiming to assess how easy the system is to use, its safety, and how well it visualizes the eyes structures during both front and back segment procedures. The study involves using the investigational 4D MIOCT device integrated into the Zeiss Artevo 800 microscope to capture detailed images of the eye during surgery. This imaging is performed in the operating room as part of the standard surgical care, with no additional treatment or interventions added. Up to eight patients may be enrolled, and images will be taken of one or both eyes during surgery to observe normal and abnormal microanatomy, as well as track any injections under the retina. Participants will have their eye imaged during surgery, and researchers will collect related clinical data and previous eye care records for comparison. The images and data will be analyzed after surgery to explore new details captured by the 4D MIOCT system. Researchers will measure ease of use, surgical workflow impact, and the presence of normal and abnormal microanatomy based on the images. There is no extra risk beyond the usual surgery, and no new medications or procedures will be performed solely for research purposes.
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Researchers are evaluating the safety, early effectiveness, immune response, and how the body processes SKG0106 in people with neovascular age-related macular degeneration nAMD. This study is an open-label, dose-escalation clinical trial aimed at assessing these factors after a single intravitreal injection of SKG0106, a gene therapy product, in Chinese patients aged 50 and older who have this eye condition. Participants receive one of three different dose levels of SKG0106 through a single injection into the eye. The study is non-randomized and open-label, meaning both researchers and participants know which dose is given. The trial focuses on evaluating dose-limiting toxicities within 4 weeks and tracking ocular and systemic adverse events over 48 weeks. During the study, participants will have their vision tested using best corrected visual acuity assessments and their eye structure examined by imaging techniques such as spectral domain optical coherence tomography. Patient-reported outcomes about vision quality will also be collected. These evaluations occur at regular visits up to 48 weeks to monitor safety, visual changes, and quality of life after treatment with SKG0106.
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Researchers are exploring new treatment options for neovascular age-related macular degeneration NVAMD, a condition affecting the eyes. This trial aims to compare a new medicine called tiespectus also known as MK-8748 or EYE201 with the standard treatment aflibercept to see if tiespectus works as well in treating NVAMD. The study includes adults aged 50 and older who have not previously received treatment for this condition. Participants will be randomly assigned to one of three groups tiespectus low dose, tiespectus high dose, or aflibercept. Those in the tiespectus groups will receive three initial injections every 4 weeks, followed by injections every 8 weeks up to week 48. After week 48, treatment will continue at intervals based on individual response until week 92. The aflibercept group will receive three initial injections followed by injections every 8 weeks until week 92. During the study, participants will have their vision tested using the Best-Corrected Visual Acuity BCVA score and their eye structure examined with imaging techniques. Researchers will monitor changes in vision over one year and track any side effects up to approximately 96 weeks. Participants will attend regular visits for treatment and assessments throughout the study period lasting about 92 weeks.
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Researchers are investigating new treatments for neovascular age-related macular degeneration NVAMD, a condition that affects vision. This study aims to learn if a medicine called tiespectus also known as MK-8748 or EYE201 can treat NVAMD as well as the standard treatment called aflibercept. The trial is a pivotal Phase 23 study that compares these treatments in people newly diagnosed with NVAMD. Participants are randomly assigned to one of three groups one group receives a low dose of tiespectus, another receives a high dose of tiespectus, and the third group receives aflibercept. Those in the tiespectus groups get three initial injections every 4 weeks, then continue injections every 8 weeks until week 48, followed by treatments at intervals based on their individual response up to week 92. The aflibercept group receives three initial injections followed by injections every 8 weeks until week 92. During the study, participants are regularly assessed for changes in their best-corrected visual acuity using ETDRS letters from baseline to one year. Other evaluations include eye imaging to measure retinal thickness and monitoring for any adverse events up to approximately 96 weeks. The study lasts over one year with ongoing visits to track treatment response and safety.
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Researchers are evaluating a preservative-free version of Bimatoprost ophthalmic solution 0.01% YSBP compared to Lumigan4 bimatoprost ophthalmic solution 0.01% in adults with primary open-angle glaucoma POAG or ocular hypertension OH. The study aims to determine if the preservative-free formulation is not worse than the existing treatment in controlling these eye conditions. This is a Phase 3 clinical trial sponsored by YS Life Science Co., Ltd., focused on treatment effectiveness and safety. Participants are randomly assigned to receive either the preservative-free Bimatoprost YSBP or Lumigan4 eye drops. The treatments are administered as eye drops, and the study uses a parallel design with two groups treated simultaneously. The trial is double-masked, meaning neither participants nor investigators know which treatment is given. The primary treatment period lasts 12 weeks, during which intraocular pressure IOP is closely monitored. During the study, participants undergo regular assessments including IOP measurements at baseline and Week 12. Visual acuity is also evaluated to ensure participants meet vision criteria. The study monitors adherence to the treatment and any side effects. The main outcome measured is the change in intraocular pressure at Week 12 to assess the treatments effect on eye pressure control. The total study duration extends through the treatment period and concludes by December 2027.
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Diabetic Macular Edema DME is a complication of diabetes that causes swelling in the central part of the retina, leading to vision loss. This condition results from changes in the small blood vessels of the retina, causing leakage and retinal thickening, often linked to increased levels of vascular endothelial growth factor VEGF. DME is a common cause of blindness in people with diabetes, and it is especially significant in Bangladesh due to the high number of adults living with diabetes. This study compares the effectiveness and safety of two treatments for DME a proposed biosimilar of Ranibizumab and Lucentis, both given as 0.5 mg injections into the eye every four weeks. A total of 70 adults with DME will be randomly assigned to receive one of these treatments in three doses over eight weeks. Safety visits will occur 48 hours after each injection, and the study concludes with an evaluation visit at week 12. Participants will undergo vision tests and imaging of the retina at the start and end of the study to measure changes in visual acuity and retinal thickness. Safety will be monitored throughout with follow-up visits shortly after each injection. Researchers will track how many patients maintain or improve their vision and assess any side effects. The total participation time for each patient is approximately 12 weeks.
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Researchers are evaluating the long-term safety and tolerability of JNJ-81201887, given as an intravitreal injection a shot into the eye, in participants with Geographic Atrophy GA secondary to Age-related Macular Degeneration AMD. This study is a long-term extension of parent clinical trials where participants had previously received either low or high doses of JNJ-81201887 or a sham procedure. The goal is to monitor participants over an extended period to understand any lasting treatment effects or side effects. Participants entering this long-term extension study will not receive additional doses of the study drug or any new intervention as part of this trial. They previously participated in parent studies where they were treated with either low dose or high dose JNJ-81201887 or sham procedure. Some participants who were in the sham group of the parent study may receive open-label treatment outside this study before entering this extension. This study focuses solely on follow-up without new treatment administration. Throughout the study, participants will undergo regular assessments to monitor ocular and systemic safety. These include tracking treatment-emergent adverse events, clinical laboratory tests, retinal imaging, and eye examinations over up to five years. This extended monitoring aims to evaluate the long-term safety profile of the previous treatments. Participants will be followed with periodic visits and evaluations, with the total study duration extending until 2030.
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Researchers are evaluating ABF-101 in a Phase 1 study to assess its safety, tolerability, and how the body processes the drug in healthy adults and people with age-related macular degeneration AMD. The study aims to understand the effects of ABF-101 on participants eye health and how the drug behaves in the body through blood and ocular tests. The study has three parts Part A involves healthy participants receiving a single ascending oral dose of ABF-101 or placebo in a randomized, double-blind manner. Part B includes healthy participants taking multiple ascending oral doses daily, also randomized and blinded. Part C is an open-label study where participants with AMD receive daily oral doses of ABF-101 without placebo. Participants will undergo blood sampling to measure drug levels and eye examinations to monitor changes in eye function and structure. The study also tracks any side effects from enrollment up to 12 weeks. Participant involvement includes adherence to dosing and monitoring schedules, with safety and drug activity closely observed throughout the study period.
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