Driving Simulator Study Comparing Two Modes of Presbyopic Correction With Contact Lenses
1 other identifier
interventional
33
0 countries
N/A
Brief Summary
The overall objective of this study is to compare the effect on simulated driving performance of multifocal (MF) versus monovision (MV) soft contact lenses in mid-late presbyopes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Aug 2014
Shorter than P25 for not_applicable
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
First Submitted
Initial submission to the registry
July 11, 2014
CompletedFirst Posted
Study publicly available on registry
July 15, 2014
CompletedStudy Start
First participant enrolled
August 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2014
CompletedResults Posted
Study results publicly available
January 20, 2016
CompletedFebruary 18, 2016
January 1, 2016
4 months
July 11, 2014
December 14, 2015
January 21, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Driving Reaction Time to Hazards (as Measured by Time to Brake, in Seconds)
Driving reaction time to hazards was assessed during simulated night time driving and measured as time to brake, in seconds. One eye (study eye) contributed to the analysis. This outcome measure was prespecified for AOAMV and AOAMF.
Week 2, each period
Secondary Outcomes (1)
Standard Deviation of Lateral Positioning
Week 2, each period
Study Arms (2)
AOAMV, then AOAMF
OTHERLotrafilcon B MV contact lenses worn for 2 weeks in Period 1, followed by lotrafilcon B MF contact lenses worn for 2 weeks in Period 2
AOAMF, then AOAMV
OTHERLotrafilcon B MF contact lenses worn for 2 weeks in Period 1, followed by lotrafilcon B MV contact lenses worn for 2 weeks in Period 2
Interventions
Multifocal contact lenses worn in both eyes
Spherical contact lenses worn with 1 eye corrected for distance and 1 eye corrected for near
Spherical contact lenses worn with both eyes corrected for distance
Multifocal contact lenses worn in both eyes
Contact lenses worn in both eyes per subject's habitual prescription
Eligibility Criteria
You may qualify if:
- Current soft contact lens wearers (for 1 month or more) with distance spherical power requirements of +1.00 to + 4.00 diopters (D) or -1.00 to -10.00D, and who have never tried and then failed in monovision or AOAMF.
- Medium to high presbyopia, i.e. spectacle add requirement of +1.50D or more.
- Astigmatism, if present, ≤1.00D in both eyes.
- Distance visual acuity (VA) correctable to 20/30 (+0.2 logMAR) in both eyes.
- Within the normal ranges for binocular vision for distance (8Δ exophoria, ≤8Δ esophoria), vertical phoria = 1.5Δ hypo or hyper.
- Full United Kingdom driving license held for at least 3 years, with at least 2000 miles driven per year.
- Willing to wear study lenses at least 5 days per week.
You may not qualify if:
- Existing AIR OPTIX® Multifocal CL user.
- Sphere requirement in the range +0.75 to -0.75D in both eyes.
- Previous refractive surgery.
- Ocular/systemic medical condition or medical treatment contra-indicating contact lens wear or driving simulation.
- Participation in a clinical study within the past 30 days.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Alcon Researchlead
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Global Brand Lead, Global Medical Affairs, Vision Care
- Organization
- Alcon Research, Ltd.
Study Officials
- STUDY DIRECTOR
Sr. Clinical Manager, Global Medical Affairs, Vision Care
Alcon Research
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 11, 2014
First Posted
July 15, 2014
Study Start
August 1, 2014
Primary Completion
December 1, 2014
Study Completion
December 1, 2014
Last Updated
February 18, 2016
Results First Posted
January 20, 2016
Record last verified: 2016-01