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Refractive Error clinical trials

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NCT ID: NCT02103309 Completed - Myopia Clinical Trials

Comparative Evaluation of Contact Lens Centering of DAILIES® AquaComfort Plus® Versus 1-DAY ACUVUE® MOIST® in Japan

Start date: October 2013
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate lens centration and subjective impressions of DAILIES® AquaComfort Plus® (DACP) lenses compared to 1-DAY ACUVUE® MOIST® (1DAM) lenses in ball sports players.

NCT ID: NCT02100410 Completed - Myopia Clinical Trials

On-Eye Evaluation of Contact Lens Axis Location

Start date: April 2013
Phase: N/A
Study type: Interventional

The purpose of this study was to evaluate the axis location of toric contact lenses after 3 minutes of wear. During this 1-visit study, each participant wore 3 pairs of study lenses of various design iterations (2-87-1, 2-87-2, 2-87-3) for an exposure time of approximately 30 minutes each. Each pair consisted of lenses of the same design iteration, 1 lens with embossed mark [TEST1 (T1), TEST3 (T3), TEST5 (T5)], worn on the right eye, and 1 lens without embossed mark [TEST2 (T2), TEST4 (T4), and TEST6 (T6)] worn on the left eye.

NCT ID: NCT02089191 Completed - Refractive Error Clinical Trials

Tear Film Stability of DAILIES® AquaComfort Plus® Contact Lenses vs. MyDay® Daily Disposable Contact Lenses

Start date: March 2014
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate tear film stability of DAILIES® AquaComfort Plus® (DACP) compared to MyDay® after 12 hours of lens wear.

NCT ID: NCT02072980 Completed - Refractive Error Clinical Trials

DAILIES TOTAL1® Lubricity Post Wear

Start date: March 2014
Phase: N/A
Study type: Interventional

The primary objective of the study is to demonstrate that the lubricity of DAILIES TOTAL1® (DT1) lenses after 16 hours of wear is equivalent to the lubricity of unworn DT1 lenses.

NCT ID: NCT02066922 Completed - Myopia Clinical Trials

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

Start date: March 2014
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT02055404 Completed - Refractive Error Clinical Trials

On-Eye Evaluation of Contact Lens Rotation Marks

Start date: February 2013
Phase: N/A
Study type: Interventional

The purpose of this study was to select the size of the molded rotation mark for a new toric contact lens by comparing the visibility of various molded rotation marks.

NCT ID: NCT02028351 Completed - Cataract Clinical Trials

Vision Measured by the Vimetrics CVA Compared With Chart Testing Under Similar Luminance and Contrast Conditions

Start date: January 2008
Phase: N/A
Study type: Observational

Purpose of The Study: The purpose of this study is the following: A)To gather age-related normative visual acuity data for the Vimetrics Central Vision Analyzer (CVA, Vimetrics, LLC, Media, Pa) B)To gather visual acuity data for patients with known ocular problems, including cataract and maculopathy. C)To correlate and compare the CVA visual acuity findings with the acuity measured with standard LogMAR acuity charts viewed under similar conditions of contrast and lighting

NCT ID: NCT01997216 Completed - Presbyopia Clinical Trials

Multifocal Lens Design Evaluation

Start date: October 2012
Phase: N/A
Study type: Interventional

The purpose of this study was to compare binocular high contrast, high illumination (HC/HI) visual acuity at near (40 centimeters) of new multifocal contact lenses against AIR OPTIX® AQUA MULTIFOCAL contact lenses when worn for 9 hours.

NCT ID: NCT01996709 Completed - Refractive Error Clinical Trials

Effectiveness of a Marketed One-Step Peroxide Lens Care Solution in Symptomatic Contact Lens Wearers

Start date: December 2013
Phase: N/A
Study type: Interventional

The purpose of this study is to assess improvement of palpebral roughness and associated symptoms with 3 months use of Clear Care®.

NCT ID: NCT01951573 Completed - Presbyopia Clinical Trials

Evaluation of a New Daily Disposable Multifocal Contact Lens Design

Start date: October 2013
Phase: N/A
Study type: Interventional

The purpose of this study is to demonstrate non-inferiority of a new daily disposable multifocal contact lens in plus powers against the commercially available AIR OPTIX® AQUA MULTIFOCAL (AOAMF) lens in high contrast/high illumination (HC/HI) near visual acuity (VA).