Refitting Multifocal Contact Lens Wearers With a Different Multifocal Contact Lens
Refitting Biofinity Multifocal Contact Lens Wearer With MyDay Multifocal Contact Lenses
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
London, United Kingdom, SW1E6AU
- Ocular Technology Group - International
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Age 40 years and older;
- Current multifocal contact lens wearer (other than MyDay® multifocal but can include Biofinity® multifocal);
Spectacle refraction:
- Distance: Sphere: -6.00D to + 4.00D
- Astigmatism: 0.00D to -0.75D
- Near Addition: Low +0.75D to +1.25D; Medium +1.50D and +1.75D; High +2.00D to +2.50D
- Best corrected visual acuity of at least 20/25 in each eye. - The prospective participants will be given a Participant Information Sheet to read and an Informed Consent Form to sign prior to any evaluation.
Exclusion Criteria:
To be eligible as a participant, each candidate shall be free of any ocular or medical condition that may affect the results of this study. The following are specific criteria that exclude a candidate from enrolment in this study:
- Acute and subacute inflammation or infection of the anterior chamber of the eye.
- Any eye disease, injury or abnormality that affects the cornea, conjunctiva or eyelids that would contraindicate contact lens wear;
- Corneal hypoesthesia (reduced corneal sensitivity), if not aphakic
- Severe insufficiency of lacrimal secretion (dry eyes).
- Any systemic disease that may affect the eye or may be exaggerated by wearing contact lenses (e.g. acne and eczema).
- Allergic reactions of ocular surfaces or adnexa that may be induced or exaggerated by wearing contact lenses or use of contact lens solutions
- Any active corneal infection (bacterial, fungal, protozoal or viral).
- Newly prescribed (within the past 30 days) use of some systemic medications (such as antihistamines, decongestants, diuretics, muscle relaxants, tranquilizers, stimulants, anti-depressants, anti-psychotics, oral contraceptives) or new prescription eyedrops which is not rewetting/lubricating eyedrops for which contact lens wear could be contraindicated as determined by the investigator;
- Monocular participants (only one eye with functional vision) or participants fit with only one contact lens;
- Subjects with slit lamp findings greater than grade 1 (e.g. edema, infiltrates, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival, anterior segment inflammation) as per ISO 11980, any previous history or signs of a contact lens related corneal inflammatory event (past corneal ulcers), or any other ocular abnormality that may contraindicate contact lens wear at the enrolment visit;
- History of corneal refractive surgery
- Enrolment of the family members of the investigator, family members of the investigator's staff, or individuals living in the households of these individuals.
- Current wearer of the test contact lens, MyDay® Multifocal.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Sequential Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Lens 1
All participants wore Lens 1 for 14 ± 3 days (Period 1)
|
Frequent replacement silicone hydrogel contact lens for 14 ± 3 days on a daily disposable wearing modality
|
|
Experimental: Lens 2
All participants wore Lens 2 for 14 ± 3 days (Period 2)
|
Daily disposable silicone hydrogel contact lens for 14 ± 3 days on a daily disposable wearing modality
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Overall Lens Handling
Time Frame: 1 week
|
The ease of contact lens insertion and removal over the week preceding the follow-up visit measured on a 100-point visual analog scale, where 0=Very difficult, Painful and 100=Very easy, Can't feel the lenses
|
1 week
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Overall logMAR Visual Acuity - Dominant Eye
Time Frame: 14 days
|
The mean logMAR visual acuity of the dominant eye calculated as the mean of distance, intermediate, and near logMAR visual acuities.
This value was recorded at the follow-up visit.
|
14 days
|
|
Overall logMAR Visual Acuity - Non-Dominant Eye
Time Frame: 14 days
|
The mean logMAR visual acuity of the non-dominant eye calculated as the mean of distance, intermediate, and near logMAR visual acuities.
This value was recorded at the follow-up visit.
|
14 days
|
|
Overall logMAR Visual Acuity - Binocular
Time Frame: 14 days
|
The mean binocular logMAR visual acuity calculated as the mean of distance, intermediate, and near logMAR visual acuities.
This value was recorded at the follow-up visit.
|
14 days
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Michel Guillon, PhD FCOptom, mguillon@otg.co.uk
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 (Actual)
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
- EX-MKTG-155
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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