Granville

Researchers are evaluating a novel spectacle lens to control myopia progression in young children aged 6 to 8 years. This randomized, controlled, double-masked study aims to validate results from previous trials by comparing the new spectacle lens with a standard single vision, impact-resistant lens. The 12-month results will help predict the treatments effectiveness over three years. Participants are randomly assigned to one of two groups one group will wear the new experimental spectacle lenses, and the other will wear standard single vision lenses. Both types of lenses are impact-resistant. The study requires children to wear their assigned spectacles for at least 10 hours daily, except during sleep, swimming, or other activities where wearing glasses is unsafe or impractical. Children will be involved in the study for 24 months, during which their vision will be regularly checked through tests including spherical equivalent refraction, axial length measurement, and visual acuity assessments. The study monitors how well the lenses control myopia progression and ensures safety by tracking any ocular or systemic conditions. Parent or guardian consent is required for participation.

Researchers are evaluating the safety and effectiveness of various Comfilcon A contact lenses, including Sphere, Toric, Multifocal, Toric Multifocal, and Energys lenses, when worn by a general population. The study focuses on visual performance and any contact lens-related adverse events after 2 hours of wear. The trial is conducted by CooperVision International Limited CVIL and includes participants aged 8 to 75 years who have experience wearing these lenses. Participants are habitual wearers of Comfilcon A lenses, divided into groups based on the specific lens type they use Sphere, Toric, Multifocal, Multifocal Toric, and Energys. Each participant will wear their respective lens type for 2 hours during the study. The study observes lens performance and safety during this wear time. During the study, participants will have their visual acuity assessed after 2 hours of lens wear. Researchers will monitor any adverse events related to the contact lenses during this period. The total participation duration is centered around this 2-hour wear and evaluation period, focusing on collecting data about lens safety and visual performance in real-world use.