View clinical trials related to Visual Acuity.
Filter by:This is a single-masked, randomized-controlled, dispensing clinical trial. A total of approximately 60 eligible myopic subjects will be targeted to complete the study.
This clinical study is a randomized, double-masked, cross-over, bilateral, 2 treatment x 2 period, dispensing 4-visit study with a 7-9 day washout period in between visits 2 and 3. The study will last approximately 3 months.
A comparison of two lens designs manufactured in the same material. The hypothesis is the subjectively rated performance of comfort, vision and lens handling will be better with the modified design compared to the initial design
To evaluate visual outcomes of a segmental refractive multifocal intraocular lens (IOL) after cataract surgery.
This is a non-masked, non-randomized, stratified, 4-arm parallel group, non-interventional study where subjects will be enrolled into one of four arms based on their habitual contact lenses. Subjects will be wearing their habitual contact lenses throughout the study and will be scheduled for morning and afternoon visits totaling 10 visits with a ~4-week washout period between visits 6 and 7.
This will be a single site, non-randomized, dispensing, brand-masked to the subject, bilateral single treatment study. There will be 2 study visits with a 10 to 14-day contact lens wear period between visits.
This is a multi-site, prospective, randomized, controlled, double-masked, four-arm-parallel-group, dispensing study. Each subject will be bilaterally fitted with one of four types of test articles and wear contact lenses of the assigned lens type during the entire course of the study. Test articles will be worn a minimum 8 hours per day and 5 days per week (subjects will be encouraged to wear study contact lenses 10 hours or more per day and 7 days per week) in a daily disposable modality for a minimum of 6 months and up to 1 year for a total of 7 scheduled visits.
This clinical study is a randomized, double-masked, bilateral, controlled, two-arm parallel group, multi-site, 1-Week, 2-visit dispensing study. Subjects between the ages of 18-40 will be randomized into a placebo arm or an investigational K-Lens arm.
This study is a randomized, 5-visit, partial subject masked, 2x3 bilateral crossover, dispensing clinical trial. During the study, each test article will be worn in a daily wear modality for at least 6 hours per day and 5 days per week for approximately 2 weeks each. The subject will wear either the Test or Control article twice and the other study article once. The primary objective of this study is to demonstrate that the Test lens works as well, if not better compared to the Control lens with respect to CLUE (Contact Lens User Experience) comfort, Slit Lamp findings, and Distance Monocular logMAR Visual Acuity. This study will also aim to show acceptable lens fit for subjects wearing the Test lens.
To evaluate the visual performance after bilateral implantation of multifocal intraocular lenses.