Clinical Comparison of Toric Contact Lenses Fit Characteristics
- Conditions
- AstigmatismRefractive Errors
- Registration Number
- NCT05805345
- Lead Sponsor
- Alcon Research
- Brief Summary
The purpose of this study is to compare the fit characteristics between four Alcon commercially available toric contact lenses.
- Detailed Description
Subjects will be expected to attend 3 visits including the screening visit. The total duration of a subject's participation in the study will be approximately 19 days.
Recruitment & Eligibility
- Status
- WITHDRAWN
- Sex
- All
- Target Recruitment
- Not specified
- Successful wear of toric soft contact lenses in both eyes for a minimum of 5 days per week and 10 hours per day during the past 3 months.
- Able to be fit with contact lenses within the available range of sphere, cylinder power, and axes (based on lens availability).
- Best Corrected Visual Acuity (BCVA) better than or equal to 0.10 (logMAR) in each eye.
- Willing to stop wearing habitual contact lenses during in-office visits.
- Other protocol-defined inclusion criteria may apply.
Key
- Current spherical, monovision or multifocal lens wearer.
- Protocol-specified biomicroscopy findings at screening.
- Current or history of herpetic keratitis in either eye.
- Participation in a clinical trial within the previous 30 days or currently enrolled in any clinical trial.
- Other protocol-defined exclusion criteria may apply.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Primary Outcome Measures
Name Time Method Distance VA with study lenses 30 mins (± 15 mins), each product Visual Acuity (VA) will be assessed using letter charts with study lenses in place and reported in logarithm minimum angle of resolution (logMAR). A logMAR value of 0.0 equates to 20/20 Snellen, which is considered normal distance eyesight. Eyes will be assessed individually.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (7)
Kurata Eyecare Center
🇺🇸Los Angeles, California, United States
Omega Vision Center P.A.
🇺🇸Longwood, Florida, United States
Kindred Optics at Maitland Vision
🇺🇸Maitland, Florida, United States
Kannarr Eye Care LLC
🇺🇸Pittsburg, Kansas, United States
ProCare Vision Centers, Inc.
🇺🇸Granville, Ohio, United States
Optometry Group, PLLC
🇺🇸Memphis, Tennessee, United States
Clarke EyeCare Center
🇺🇸Wichita Falls, Texas, United States
Kurata Eyecare Center🇺🇸Los Angeles, California, United States