View clinical trials related to Visual Acuity.
Filter by:This study is a 2-phase adaptive approach utilizing a 2×2 crossover design. The study lenses will be worn in a bilateral fashion for a period of approximately 1-week each.
This is a single-masked, 2×3 crossover, randomized controlled, dispensing clinical trial to evaluate the visual performance (logMAR) and subjective vision responses of the Test Lens.
This is a bilateral, 2-week dispensing, randomized, controlled, subject-masked, 2×2 crossover study to evaluate the clinical performance of prototype contact lenses with experimental UV/HEV-blocker.
This is a two-arm, open-label, bilateral dispensing clinical investigation. Eligible subjects will proceed to either a low-sphere or high-sphere arm based on refraction measurements in the baseline assessment.
This is a multi-site, randomized, bilateral, dispensing, parallel design study with two arms to evaluate contact lens related dry eye symptoms and subjective comfort.
This is a single-masked, 2×3 crossover, randomized, dispensing clinical trial to evaluate the visual performance and subjective responses of the JJVC Investigational Contact Lens.
This is a bilateral, dispensing, randomized, controlled, double-masked, 2×2 cross-over study to evaluate the clinical performance of ACUVUE OASYS® 1-Day for Astigmatism contact lenses produced on a recently qualified manufacturing line.
This will be a single center pilot study to evaluate appearance of the Meibomian glands.
Suppression of the optokinetic nystagmus when a target is perceived can be applied to assess visual acuity objectively. Our aim is to establish prediction intervals for this optokinetic nystagmus suppression test (Speedwheel Test, SW) so that SW acuity may be used to estimate Snellen acuity (FrACT- C and -E) in the clinic in adults and children unable to cooperate in other acuity testing.
This is a 6-visit, subject-masked, multi-site, 2×3 crossover dispensing trial that will last approximately 2 - 4 months.