CLARITI (TM) 1-Day Multifocal Contact Lenses Performance and Acceptance Evaluation
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
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London, United Kingdom, SW1E6AU
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age 45 years or more
- Spectacle or soft contact lens wearer
- Refraction: best sphere (corrected for back vertex distance) -6.00 Diopters (D) to +4.00 D; Astigmatism - 0.00 D to -0.75 D; Near addition for 40 cm; Medium Add: +1.50 D to +2.00 D; High Add: +2.25 D to +2.50 D
- Best spectacle corrected visual acuity of 6/9 or better in each eye
- Willingness to adhere to the instructions set forth in the clinical protocol
- Signature of the subject Informed Consent form after review of Information to Participant document.
Exclusion Criteria:
- Systemic or ocular allergies which might interfere with contact lens wear
- Systemic disease which might interfere with contact lens wear
- Ocular disease which might interfere with contact lens wear (e.g. hypothesia, insufficient lacrimal secretion)
- Use of medication which might interfere with contact lens wear
- Active ocular infection
- Use of ocular medication
- Significant ocular anomaly
- Presence of two or more corneal scars in either eye
- Monovision contact lens wearers
- Pregnancy or lactation
- Any medical condition that might be prejudicial to the study
- Participants non-able to give consent or from a vulnerable group
- Infectious disease (for example, hepatitis, tuberculosis, etc.) or a contagious immunosuppressive disease (such as HIV, AIDS, etc.)
- Employees or family member of the investigational clinic (e.g. investigator, coordinator, technician)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Other: Control (sphere) /Test (multi-focal)
Subjects were first fitted with Control lens (sphere) and a pair of reading glasses for one week.
Subjects were then fitted with the Test lens (multi-focal) for one week.
|
contact lens was to be worn a daily wear.
Other Names:
contact lens was to be worn a daily wear with spectacles
Other Names:
|
|
Other: Test (sphere) /Control (multi-focal)
Subjects were first fitted with the Test lens (multi-focal) for one week.
Subjects were then fitted with Control lens (sphere) and a pair of reading glasses for one week.
|
contact lens was to be worn a daily wear.
Other Names:
contact lens was to be worn a daily wear with spectacles
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Distance LogMAR Visual Acuity
Time Frame: 7 days post wear
|
Distance time controlled LogMAR (Logarithm of the Minimum Angle of Resolution) Visual Acuity was carried out binocularly, at 4m (meter) under 250 cd/m^2 and 2.5 cd/m^2 (candela per square meter) luminance.
The test was presented under the two conditions; High luminance (250 cd/m^2) High Contrast (90%) & Low Contrast (10%) and Low Luminance (2.5 cd/m^2) High Contrast (90%)
|
7 days post wear
|
|
Near LogMAR Visual Acuity
Time Frame: 7 days post wear
|
Near time controlled LogMAR Visual Acuity was carried out binocularly, at 4cm under 250 cd/m^2 and 50 cd/m^2 luminance.
The test was presented on under the two conditions; High Luminance (250cd/m^2) High Contrast (90%) & Low Contrast (10%) and Low Luminance (50cd/m^2) High Contrast (90%)
|
7 days post wear
|
Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- CR-5175
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