The Effects of Contact Lenses With Experimental Dye on Visual Function
1 other identifier
interventional
62
1 country
1
Brief Summary
This is a single-site, two-visit, contralateral, non-dispensing, randomized, controlled and subject-masked study to measure potential benefits of the new UV blocker.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started May 2018
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 15, 2018
CompletedFirst Submitted
Initial submission to the registry
May 31, 2018
CompletedFirst Posted
Study publicly available on registry
June 14, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 20, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
September 20, 2018
CompletedResults Posted
Study results publicly available
November 18, 2019
CompletedNovember 18, 2019
October 1, 2019
4 months
May 31, 2018
September 17, 2019
October 29, 2019
Conditions
Outcome Measures
Primary Outcomes (3)
Two-Point Light Spread Function
The two-point light spread function was assessed at visit 2 for each subject eye under two conditions with a distance filter and without a distance filter. Measurements for this metric were taken twice, with the presence of an additional UV/HEV light source and without this additional light source (the same study lenses were used for both measurements). Two-point light spread function is defined that the as the minimum distance (mm) that two points of light are completely distinct. Measurements for this metric are positive. Smaller distances indicate better lens performance. The average distance for each lens type and light source combination was reported across age groups.
Between 5 minutes and 3 hours Post Lens Insertion, at Visit 2
Halos
The appearance of Halos was assessed at visit 2 for each subject eye. Measurements for this metric were taken twice, with the presence of an additional UV/HEV light source and without this additional light source (the same study lenses were used for both measurements). Halos were quantified as the diameter (mm) of the outer edges of the Halo. Measurements for this metric are positive. Smaller diameter indicates better lens performance. The average diameter (mm) for each lens type and light source combination was reported across age groups.
Between 5 minutes and 3 hours Post Lens Insertion, at Visit 2
Starburts
The appearance of starbursts was assessed at visit 2 for each subject eye. Measurements for this metric were taken twice, with the presence of an additional UV/HEV light source and without this additional light source (the same study lenses were used for both measurements). Starbursts are defined as the diameter (mm) of the light's lateral spread. Measurements for this metric are positive. Smaller diameter indicates better lens performance. The average diameter (mm) for each lens type and light source combination was reported across age groups.
Between 5 minutes and 3 hours Post Lens Insertion, at Visit 2
Secondary Outcomes (4)
Glare Disability Threshold
Between 5 minutes and 3 hours Post Lens Insertion, at Visit 1
Photostress Recovery Time
Between 5 minutes and 3 hours Post Lens Insertion, at Visit 1
Glare Discomfort
Between 5 minutes and 3 hours Post Lens Insertion, at Visit 1
Heterochromatic Contrast Threshold
Between 5 minutes and 3 hours Post Lens Insertion, at Visit 1
Study Arms (2)
Test/Control
EXPERIMENTALFor Visit 1, subjects will be randomly assigned to 1 of 2 contralateral lens sequences (Right: Test, Left: Control) OR (Right: Control, Left: Test). Then for visit 2, subjects will be randomly assigned to the same 1 of 2 contralateral lens sequences again.
Control/Test
EXPERIMENTALFor Visit 1, subjects will be randomly assigned to 1 of 2 contralateral lens sequences (Right: Test, Left: Control) OR (Right: Control, Left: Test). Then for visit 2, subjects will be randomly assigned to the same 1 of 2 contralateral lens sequences again.
Interventions
Eligibility Criteria
You may qualify if:
- \- Potential subjects must satisfy all of the following criteria to be enrolled in the study:
- The subject must read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form.
- Appear able and willing to adhere to the instructions set forth in this clinical protocol
- Between 18 and 65 (inclusive) years of age at the time of screening.
- Be a current spherical soft silicone hydrogel contact lens wearer in both eyes with a minimum of 6 hours/day and 5 days/week wear time over the last 30 days by self-report.
- The subject's vertex-corrected spherical equivalent distance refraction must be in the range of -1.00 through -4.50 D in each eye.
- The subject has a best corrected visual acuity of 20/25 or better in each eye.
You may not qualify if:
- Currently pregnant or breastfeeding.
- Any ocular or systemic allergies or diseases that may interfere with contact lens wear.
- Any autoimmune disease or use of medication, which may interfere with contact lens wear. Habitual medications used by successful soft contact lens wearers are considered acceptable.
- Entropion, ectropion, extrusions, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, or aphakia.
- Any previous, or planned, ocular or interocular surgery (e.g., radial keratotomy, PRK, LASIK, etc.).
- Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear.
- Multifocal, toric or extended wear contact lens correction.
- Participation in any contact lens or lens care product clinical trial within 14 days prior to study enrollment.
- History of binocular vision abnormality or strabismus.
- Any infectious disease (e.g., hepatitis, tuberculosis) or contagious immunosuppressive diseases (e.g., HIV) by self-report.
- Employee or immediate family member of an employee of clinical site (e.g., Investigator, Coordinator, Technician).
- Any ocular infection.
- Any grade 3 or greater slit lamp findings (e.g., edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) on the FDA classification scale, any previous history or signs of a contact lens-related corneal inflammatory event (e.g., past peripheral ulcer or round peripheral scar), or any other ocular abnormality that may contraindicate contact lens wear.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Georgia Center for Sight
Statesboro, Georgia, 30642, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- John Buch, O.D. F.A.A.O - Senior Principal Research Optometrist
- Organization
- Johnson & Johnson Vision Care Inc.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- GT60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 31, 2018
First Posted
June 14, 2018
Study Start
May 15, 2018
Primary Completion
September 20, 2018
Study Completion
September 20, 2018
Last Updated
November 18, 2019
Results First Posted
November 18, 2019
Record last verified: 2019-10