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Visual Acuity clinical trials

View clinical trials related to Visual Acuity.

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NCT ID: NCT05101252 Completed - Visual Acuity Clinical Trials

Comparison of a Daily Disposable Multifocal Contact Lens to a Marketed Product

Start date: October 11, 2021
Phase: N/A
Study type: Interventional

This is a single-masked, two-arm, parallel-group, randomized-controlled, dispensing clinical trial to evaluate the visual performance.

NCT ID: NCT05099380 Completed - Visual Acuity Clinical Trials

Validation of Senofilcon A With New UV / HEV Filter

Start date: October 5, 2021
Phase: N/A
Study type: Interventional

This is a bilateral, dispensing, randomized, controlled, subject-masked, 2-arm parallel study to evaluate safety and efficacy

NCT ID: NCT05056870 Completed - Visual Acuity Clinical Trials

Clinical Evaluation of Spherical Soft Contact Lenses, Toric Soft Contact Lenses and Spectacles in Low Astigmats

Start date: September 15, 2021
Phase: N/A
Study type: Interventional

This will be a 5-visit, randomized, partially single-masked, bilateral wear, dispensing, 2-treatment × 2-period crossover study with spectacle-wear washout and wash-in periods.

NCT ID: NCT05000164 Completed - Visual Acuity Clinical Trials

Evaluation of Visual Acuity With a Reusable Toric Multifocal Contact Lens

Start date: August 2, 2021
Phase: N/A
Study type: Interventional

The study is a bilateral, single-masked, single-arm, 4-visit dispensing study evaluating the visual performance of the study lenses.

NCT ID: NCT04997135 Completed - Visual Acuity Clinical Trials

Clinical Evaluation of Therapeutic Meibomian Gland Expression

Start date: August 15, 2021
Phase:
Study type: Observational

This will be a single centre pilot study to evaluate appearance of the Meibomian glands.

NCT ID: NCT04995055 Completed - Visual Acuity Clinical Trials

Evaluation of Multifocal Contact Lens Designs With and Without an HEV Blocker on Visual Function

Start date: October 25, 2021
Phase: N/A
Study type: Interventional

This is a single-masked, bilateral, controlled, randomized, 2x2 crossover, non-dispensing clinical trial to characterize the effects of an HEV-Blocker on several measures of visual function in a presbyopic population.

NCT ID: NCT04974697 Completed - Visual Acuity Clinical Trials

Evaluation of Daily Disposable Silicone Hydrogel Multifocal Toric Contact Lenses

Start date: July 19, 2021
Phase: N/A
Study type: Interventional

The study is a bilateral, single-masked, single-arm, 4-visit dispensing study. There will be one study treatment, with the subject being dispensed lenses for 6 to 8 days, then lens power will be optimized (if necessary) and dispensed for a further 2 weeks to assess the clinical performance of investigational multifocal toric contact lenses.

NCT ID: NCT04968925 Completed - Visual Acuity Clinical Trials

Evaluation of Comfort for Two Marketed Daily Disposable Contact Lenses

Start date: July 12, 2021
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT04889625 Completed - Visual Acuity Clinical Trials

Evaluation of Investigational Daily Disposable Multifocal Contact Lenses Produced With Different Manufacturing Processes in Myopes

Start date: May 21, 2021
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT04885296 Completed - Visual Acuity Clinical Trials

Evaluation of Prototype Lenses With Experimental UV/HEV Blocker

Start date: May 10, 2021
Phase: N/A
Study type: Interventional

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.