Comparative Study to Evaluate the Cosmetic Appearance of Two Brands (Coopervision (CVI) vs. Competitor) of Color Soft Contact Lenses.
- Conditions
- Myopia
- Interventions
- Device: Verde (Competitor-control)Device: Cinza (Competitor-control)Device: Esmeralda (Competitor-control)Device: Azul (Competitor-control)Device: Grey (CVI-test)Device: Jade (CVI-test)Device: Blue (CVI-test)Device: Green (CVI-test)
- Registration Number
- NCT02299869
- Lead Sponsor
- Coopervision, Inc.
- Brief Summary
Comparative Study to Evaluate the Cosmetic Appearance of Two Brands (Coopervision (CVI) vs. Competitor)of Color Soft Contact Lenses
- Detailed Description
Each lens pair comparison will require two visits over two days, as follows: Visits: V1 (lens dispensing), V2 (20 minutes post lens settling). Each subject will be randomized to wear the test and control lenses in a series of four short fitting comparisons.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 41
- Is between 18 and 40 years of age (inclusive).
- Has had a self-reported visual exam in the last two years.
- Is an adapted wearer of spherical soft contact lenses.
- Has a contact lens spherical prescription between - 1.00 and - 10.00 (inclusive).
- Has a spectacle cylinder up to 0.75 diopter (D) in each eye
- Can achieve best corrected spectacle distance visual acuity of 20/30 (0.18 logMAR) or better in each eye.
- Has clear corneas and no active ocular disease.
- Has read, understood and signed the information consent letter.
- Is willing to wear his/hers spectacles over the study contact lenses.
- Is willing to comply with the wear schedule.
- Is willing to comply with the visit schedule.
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Has never worn contact lenses before.
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Currently wears rigid gas permeable contact lenses.
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Has a history of not achieving comfortable contact lens wear (5 days per week; > 8 hours/day)
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Has a contact lens prescription outside the range of - 1.00 to -10.00D.
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Has a spectacle cylinder ≥1.00D of cylinder in either eye.
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Does not have a pair of corrective spectacles at the time of the visit.
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Cannot achieve best corrected spectacle distance visual acuity of 20/30 (0.18 logMAR) or better in each eye.
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Presence of clinically significant (grade > 2.0, scale 0-4) anterior segment abnormalities.
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Presence of ocular or systemic disease or need of medications which might interfere with contact lens wear.
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Slit lamp findings that would contraindicate contact lens wear such as:
- Pathological dry eye or associated findings
- Pterygium, pinguecula, or corneal scars within the visual axis
- Neovascularization > 0.75 mm in from of the limbus
- Giant papillary conjunctivitis (GCP) worse than grade 1
- Anterior uveitis or iritis (past or present)
- Seborrheic eczema, Seborrheic conjunctivitis
- History of corneal ulcers or fungal infections
- Poor personal hygiene
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Has a known history of corneal hypoesthesia (reduced corneal sensitivity)
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Has aphakia, keratoconus or a highly irregular cornea.
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Has Presbyopia or has dependence on spectacles for near work over the contact lenses.
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Has undergone corneal refractive surgery.
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Is participating in any other type of eye related clinical or research study.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Group 1 - Verde (Competitor-control) vs. Green (CVI-test) Verde (Competitor-control) Each subject was randomized to wear the test and control lenses contralaterally. Group 2 - Cinza (Competitor-control) vs. Grey (CVI-test) Cinza (Competitor-control) Each subject was randomized to wear the test and control lenses contralaterally. Group 2 - Cinza (Competitor-control) vs. Grey (CVI-test) Grey (CVI-test) Each subject was randomized to wear the test and control lenses contralaterally. Group 3 - Esmeralda (Competitor-control) vs. Jade (CVI-test) Jade (CVI-test) Each subject was randomized to wear the test and control lenses contralaterally. Group 4 - Azul (Competitor-control) vs. Blue (CVI-test) Blue (CVI-test) Each subject was randomized to wear the test and control lenses contralaterally. Group 1 - Verde (Competitor-control) vs. Green (CVI-test) Green (CVI-test) Each subject was randomized to wear the test and control lenses contralaterally. Group 3 - Esmeralda (Competitor-control) vs. Jade (CVI-test) Esmeralda (Competitor-control) Each subject was randomized to wear the test and control lenses contralaterally. Group 4 - Azul (Competitor-control) vs. Blue (CVI-test) Azul (Competitor-control) Each subject was randomized to wear the test and control lenses contralaterally.
- Primary Outcome Measures
Name Time Method Comfort 20 minutes Participant's subjective rating for comfort. (Scale 0-10, 0=poor, 10=excellent).
Comfort Preference 20 minutes Participant's subjective preference for comfort on a 3 point Likert Scale. 1=prefer CVI-test lens, 2=prefer Competitor-control lens, 3=no preference
Cosmetic Appearance Preference 20 minutes Participant's subjective preference for cosmetic appearance. 3 point Likert Scale. 1=prefer CVI-test lens 2=prefer Competitor-control lens, 3=no preference
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Optometry Clinic, National Autonomous University
🇲🇽Mexico D.F., Mexico