Status:
COMPLETED
Lens Wear Schedules and End-of-Day Comfort
Lead Sponsor:
CIBA VISION
Collaborating Sponsors:
University of Waterloo
Conditions:
Myopia
Eligibility:
All Genders
17+ years
Phase:
NA
Brief Summary
The purpose of this study was to assess the impact of lens-free (recovery) intervals of varying lengths on end-of-day comfort and tear film changes with daily contact lens wear.
Detailed Description
This study was conducted in a cross-over design with two phases. Each phase consisted of four cycles approximately 12 hours in length. During each cycle, contact lenses were worn for 2-hour intervals,...
Eligibility Criteria
Inclusion
- Is at least 17 years of age and has full legal capacity to volunteer.
- Is willing and able to follow instructions and maintain the appointment schedule.
- Has had an ocular examination in the last two years.
- Is an adapted soft contact lens wearer.
- Experiences a decrease in ocular comfort through a lens-wearing day.
- Has a current pair of spectacles.
- Has a distance contact lens prescription of +6.00 diopters to -10.00 diopters and an acceptable fit with the study lenses.
- Has astigmatism less than or equal to -1.00 DC.
- Achieves visual acuity of 6/9 or better with the study lenses and with habitual spectacles.
- Other protocol-defined inclusion criteria may apply.
Exclusion
- Has any ocular disease.
- Has a systemic condition that may affect a study outcome variable.
- Is using any systemic or topical medications that may affect ocular health.
- Has known sensitivity to the diagnostic pharmaceuticals to be used in the study.
- Other protocol-defined exclusion criteria may apply.
Key Trial Info
Start Date :
August 1 2011
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
March 1 2012
Estimated Enrollment :
44 Patients enrolled
Trial Details
Trial ID
NCT01433549
Start Date
August 1 2011
End Date
March 1 2012
Last Update
May 6 2013
Active Locations (1)
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1
University of Waterloo Centre for Contact Lens Research
Waterloo, Ontario, Canada, N2L 3G1