The Clinical Evaluation of Two Daily Disposable Contact Lenses
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
-
-
-
Manchester, United Kingdom, M60 1QD
- Eurolens Research
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- They are of legal age (18 years) and capacity to volunteer.
- They understand their rights as a research subject and are willing to sign a Statement of Informed Consent.
- They are willing and able to follow the protocol.
- They would be expected to attain at least 6.9 (20/30) in each eye with the study lenses.
- They are able to wear contact lenses which have a back vertex power of -1.00 to -6.00DS.
- They have a maximum of 1.00D of refractive astigmatism (i.e. < 1.00 DC).
- They have worn soft contact lenses within six months of starting the study.
Exclusion Criteria:
- They have an ocular disorder which would normally contra-indicate contact lens wear.
- They have a systemic disorder which would normally contra-indicate contact lens wear.
- They are using any topical medication such as eye drops or ointment.
- They are aphakic.
- They have had corneal refractive surgery.
- They have any corneal distortion resulting from previous hard or rigid lens wear or has keratoconus.
- They are pregnant or lactating.
- They have grade 2 or greater of any of the following ocular surface signs: corneal edema, corneal vascularization, corneal staining, tarsal conjunctival changes or any other abnormality which would normally contraindicate contact lens wear.
- They have any infectious disease (e.g., hepatitis) or any immunosuppressive disease (e.g., HIV).
- They have diabetes.
- They are currently taking part in any other clinical study or research.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Active Comparator: etafilcon A/etafilcon A
Period 1: etafilcon A, Period 2: etafilcon A
|
contact lens
|
|
Active Comparator: etafilcon A/omafilcon A
Period 1: etafilcon A, Period 2: omafilcon A
|
contact lens
contact lens
|
|
Active Comparator: omafilcon A/etafilcon A
Period 1: omafilcon A, Period 2: etafilcon A
|
contact lens
contact lens
|
|
Active Comparator: omafilcon A/omafilcon A
Period 1: omafilcon A, Period 2: omafilcon A
|
contact lens
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Distance Visual Acuity
Time Frame: 1 week
|
logarithm of the minimum angle of resolution (logMar) ideal is 0.0 and represents 20/20 Snellen acuity.
logMar values > 0.00 indicate vision poorer than the ideal and values <0.00 indicate vision greater than the ideal.
|
1 week
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Lens Comfort
Time Frame: 1 week
|
A weighted combined score calculated from individual comfort-related questions asked on a 1-5 scale: 1=most negative response to 5=most positive was used to derive comfort outcomes.
The analysis shows the difference in outcome between the test and control.>0
= comfortable, <0 = uncomfortable
|
1 week
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Study record dates
Study Major Dates
Study Start
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-0707
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