Myopia Clinical Trials

The goal of this clinical trial is to study changes in eye shape of nearsighted young adults using low-dose atropine eye drops or soft multifocal contact lenses. The main questions it aims to answer are: * do low-dose atropine and soft multifocal contact lenses affect the shape of the peripheral eye? * are changes in peripheral eye shape from these interventions influenced by changes in the focusing system of the eye? Participants will: * have multiple different types of photos taken * have their prescription for glasses/contacts checked * have their eye health checked, including the use of dilating eye drops * be randomly assigned to use eye drops every night or wear special contact lenses daily instead of their typical contacts * will complete five study visits over the course of 12 months Researchers will compare young adults using low-dose atropine to those wearing soft multifocal contact lenses and to those using no intervention to see if using these interventions affects retinal shape. Read Less

The purpose of this study is to compare visual performance (high and low contrast acuity, reading acuity, contrast sensitivity, stereoacuity, accommodative response, eye hand coordination, far near vision, and dynamic vision) between Visioneering Technologies, Inc. NaturalVue Multifocal and CooperVivion MiSight. Read Less

The study explores the suppression of myopia via violet light. Read Less

The aim of this study is to compare the overall lens satisfaction between two soft multifocal contact lenses. Read Less

This is a 3-visit, single site, observational clinical study to evaluate the characterization of the central and peripheral wavefront aberration profiles in pediatric myopic subjects. Read Less

Low-level red-light technology provides a new and innovative myopia control approach. This strategy enables relatively high energies of light to be delivered at much shorter durations of exposure to induce the myopia control effect. The efficacy of the low-level red-light technology has been proven in a Chinese population. This trial demonstrated that 3-minutes per session twice a day repeated low-level red-light treatment controlled 87.7% of refraction progression and 76.8% of axial length elongation when the time of compliance to the treatment was 75%. Repeating this RCT in culturally diverse groups will confirm and translate this technology into a solution for myopia control globally. Read Less

The goal of this clinical trial is to evaluate the safety and efficacy of the DG1 spectacle lens for myopia progression control in children. * To assess if the DG1 lens will slow the progression of myopia through an adjusted mean difference (e.g., age and baseline SER) of approximately 0.75D in cycloplegic spherical equivalent autorefraction refractive error compared to single-vision (SV) spectacles over the study period. * To assess if DG1 lens will slow the progression of myopia through an adjusted mean difference (e.g., age and baseline SER) of approximately 0.3mm in axial elongation compared to SV over the study period. The clinical trial will compare DG1 spectacle lens to single vision spectacle lens. Participants will wear spectacle lenses and return for visits at regularly scheduled intervals through a 36-month follow up visit. All subjects who complete the 36-month visit will continue in the study for an additional 12 months for the rebound evaluation. Read Less

Evaluating outcomes after bilateral implantation of ICLs or bilateral LASIK as treatment options for the correction or reduction of myopia with or without astigmatism. Read Less

Corrective eye surgeries, such as Lasik, are widely used to correct focusing problems such as myopia, or nearsightedness. Often these patients develop other conditions like myopic maculopathy or glaucoma which require monitoring with optical coherence tomography (OCT). Since OCT is a light-based test and changes the refractive status of the eye (in the cornea or the lens), it can potentially affect the results of the OCT measurements but has not been sufficiently studied. This pilot study aims at studying the potential change in OCT parameters in the eye after undergoing such surgery. Read Less

This is a conventional efficacy trial to validate the results from previous clinical trials for younger children; the 12-month efficacy results will be used to predict the 3-year treatment efficacy. This is a randomized, controlled (1:1), multisite, subject- and observer-masked, 2-arm parallel group study. Read Less

Currently, optical and pharmacological interventions have been developed to prevent the progression of childhood myopia. However, no myopia control strategy has been shown to have complete efficacy in controlling myopia progression in children. One possible reason is that risk factors contributing to the development of myopia were not controlled in previous clinical studies including time outdoors and near vision behaviour. This study aims to quantify time spent outdoors and near vision behavior in myopic children and its impact on myopia control efficacy. The outcomes of this study will guide clinicians on risk management and improve responses to existing treatments for progressive myopia. Read Less

This research project aims to provide additional knowledge of pharmacological and optical methods of myopia control and to gain a better understanding of the biometry of the pediatric eye, which contributes to the onset and progression of myopia. As a result, this study will improving our best practices for myopia control in pediatric patients. Read Less