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Active clinical trials for "Refractive Errors"

Results 161-170 of 326

Prospective S&E Study of Wavefront-guided PRK for Myopia With iDesign Advanced Wavescan Studio™...

Stable Myopic Refractive ErrorWith or Without Astigmatism

Prospective, multicenter, bilaterally-treated, open-label, non-randomized clinical trial.

Completed21 enrollment criteria

Evaluation of Vision Effects of a Cosmetic Tinted Hydrogel Contact Lens

Refractive Error

Subjects will wear 2 of 2 study contact lenses for a wearing time of approximately three to four hours at each of the visits in order to take measurements on binocular functional visual performance.

Completed19 enrollment criteria

Three-month Clinical Evaluation of Silicone Hydrogel Definitive 65 Contact Lenses

Ametropia

Comparison of different contact lens materials.

Completed14 enrollment criteria

Multi-Center Clinical Evaluation of Two Daily Disposable Contact Lenses (Study 2)

Refractive Error

The purpose of this study is to compare the subjective performance of two daily disposable contact lenses with respect to comfort and handling.

Completed17 enrollment criteria

A Comparative Study of Two Daily Disposable Contact Lenses in Higher Myopia Subjects

Refractive ErrorMyopia

The purpose of this study is to compare the change from baseline in central corneal curvature at one week, between 2 silicone hydrogel lenses, in higher myopic subjects.

Completed17 enrollment criteria

Dispensing Evaluation of Subjective Comfort, Vision, and Handling of a New Lens Compared to a Marketed...

Refractive Ametropia

To evaluate and compare the performance of a new contact lens to a marketed contact lens.

Completed25 enrollment criteria

Ocular Comfort and the "Aging" Lens (ERBIUM)

Refractive Error

The purpose of this trial was to evaluate the factors affecting comfortable contact lens wear and how those factors affect contact lens replacement frequency.

Completed12 enrollment criteria

Prospective Study of an Investigational Toric Soft Contact Lens

MyopiaAstigmatism1 more

The purpose of this study was to demonstrate substantial equivalence of an investigational toric soft contact lens to the commercially available Focus® DAILIES® Toric soft contact lens when worn in a daily wear, daily disposable mode for three months.

Completed17 enrollment criteria

Evaluation of the Performance of Non-molded Soft Contact Lenses

Ametropia

To evaluate the performance of the study soft lens for vision, comfort, physiology and lens surface properties.

Completed2 enrollment criteria

Improving Vision and Quality of Life in the Nursing Home

Refractive ErrorCataract

The primary purpose of this study is to evaluate whether interventions to improve vision in nursing home residents have an impact on residents' health-related quality of life. The interventions being evaluated are correction of refractive error (near-sightedness, far-sightedness, presbyopia) and cataract surgery.

Completed5 enrollment criteria
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