Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
26 participants
OBSERVATIONAL
2018-06-14
2018-07-26
Brief Summary
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Detailed Description
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Conditions
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Study Design
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CASE_ONLY
PROSPECTIVE
Study Groups
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Group 1
All subjects will wear the 3 contact lenses: Single Vision, Multifocal 1 and Multifocal 2.
Single Vision Contact Lens
Spherical Contact Lens worn on non-dispensing basis
Multifocal Contact Lens 1
Multifocal Contact Lens worn on non-dispensing basis
Multifocal Contact Lens 2
Multifocal Contact Lens worn on non-dispensing basis
Interventions
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Single Vision Contact Lens
Spherical Contact Lens worn on non-dispensing basis
Multifocal Contact Lens 1
Multifocal Contact Lens worn on non-dispensing basis
Multifocal Contact Lens 2
Multifocal Contact Lens worn on non-dispensing basis
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Best corrected visual acuity of at least 20/30
* Spherical equivalent refractive error in each eye of between -0.75 and -6.00 diopters sphere after vertexing to the corneal plane
Exclusion Criteria
* Any active anterior segment disease, pathology, or surgery affecting vision, refraction, or the ability to wear a soft contact lens
* History of ocular trauma or surgery causing abnormal or distorted vision
* Current Rigid Gas Permeable (RGP) contact lens wearers
* Unwilling to have eyes photographed or video recorded
* Pregnant and/or lactating females, by self-report
18 Years
39 Years
ALL
Yes
Sponsors
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University of Houston
OTHER
Responsible Party
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Eric R. Ritchey
Assistant Professor
Locations
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University of Houston
Houston, Texas, United States
Countries
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References
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Nti AN, Gregory HR, Ritchey ER, Wolffsohn JS, Berntsen DA. Contrast Sensitivity with Center-distance Multifocal Soft Contact Lenses. Optom Vis Sci. 2022 Apr 1;99(4):342-349. doi: 10.1097/OPX.0000000000001874.
Other Identifiers
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STUDY00000958
Identifier Type: -
Identifier Source: org_study_id
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