- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05973409
Evaluation of Onefit Scleral Lenses in the Mangement of Dry Eye
Study Overview
Detailed Description
The objective of the study is to determine if scleral lenses with and scleral lenses without Hydra-PEG coating provide positive improvement in ocular comfort and dryness scores.
The effect of the study lenses and the coating, will be compared in a group of symptomatic soft lens wearers, and also in a group of symptomatic non contact lens wearers.
The primary outcome variable for this study is "overall ocular comfort" reported at the screening visit for the habitual vision correction, and at the 4-week follow-up visits for each of the two study lenses. using a 0-10 scale (0.5 steps).
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Jose Vega, OD, MSc, PhD
- Phone Number: 925-621-3761
- Email: jvega2@coopervision.com
Study Locations
-
-
Ontario
-
Waterloo, Ontario, Canada, N2L 3G1
- School of Optometry & Vision Sciences
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Are at least 17 years of age and have full legal capacity to volunteer;
- Have read and signed an information consent letter;
- Are willing and able to follow instructions and maintain the appointment schedule;
- Agree to wear the study scleral lenses for at least 8 hours per day, 5 days a week;
- Have a refraction between +20.00 and -20.00D and spectacle astigmatism of no more than -3.00DC in each eye;
- Have best corrected visual acuity of 20/40 or better in each eye with the study lenses;
- Demonstrate an acceptable fit with the study lenses;
- Have no active ocular disease or inflammation;
- Group 1: Habitual wearer of frequent replacement or daily disposable soft lenses;
- Group 2: Have not worn contact lenses for 6 months;
- Group 1: Contact lens wearers should score ≥12 on CLDEQ-8;
- Group 2: Non contact lens wearers should score ≥13 on OSDI.
Exclusion Criteria:
- Are participating in any concurrent clinical or research study, or have done so within the past 30 days;
- Cannot achieve a successful lens fit or vision with the study lens;
- Have been diagnosed with keratoconus or corneal distortion;
- Have any known active* ocular condition, disease and/or infection;
- Have a systemic or ocular condition that in the opinion of the investigator may affect a study outcome variable e.g. pingueculae;
- Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable;
- Group 2: Non-contact lens wearers who score ≥33 on OSDI and also demonstrate either corneal staining ≥3 (Oxford scale) or non-invasive tear break-up time ≤3 seconds#;
- Have known sensitivity to the diagnostic sodium fluorescein to be used in the study;
- Are pregnant, lactating or planning a pregnancy^ at the time of enrolment, by self report;
- Have undergone refractive error surgery;
- Are listed on the Delegation Log for this study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Habitual Soft Lens Wearers
Each group will be a prospective, randomized, double masked, cross-over, 1-month per arm, daily wear study.
Each participant will be active in the study for at least 2 months.
|
scleral lens with and without hydra-peg coating
|
Experimental: Non Contact Lens Wearers
Each group will be a prospective, randomized, double masked, cross-over, 1-month per arm, daily wear study.
Each participant will be active in the study for at least 2 months.
|
scleral lens with and without hydra-peg coating
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
overall ocular comfort
Time Frame: 4 weeks
|
reported at the screening visit for the habitual vision correction, and at the 4-week follow-up visits for each of the two study lenses.
using a 0-10 scale (0.5 steps)
|
4 weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Lyndon Jones, PhD, Director, Centre for Ocular Research and Education
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- SEC-P052021
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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