Comparison of Two New Silicone Hydrogel Multifocal Products
- Conditions
- Presbyopia
- Interventions
- Device: Lotrafilcon B multifocal contact lensDevice: Senofilcon A multifocal contact lens
- Registration Number
- NCT00823615
- Lead Sponsor
- CIBA VISION
- Brief Summary
The purpose of this trial is to compare the performance of two multifocal contact lenses.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 40
- At least 35 years of age
- Best-corrected visual acuity of at least 20/40 in each eye.
- Spectacle add between +0.75D and +1.50D (inclusive).
- Able to be fit in available study sphere powers (-0.50 to -5.50D).
- Currently wearing soft contact lenses at least 5 days a week.
- Other protocol inclusion/exclusion criteria may apply.
- Requires concurrent ocular medication.
- Eye injury or surgery within twelve weeks immediately prior to enrollment.
- Currently enrolled in an ophthalmic Clinical Trial.
- Evidence of systemic or ocular abnormality, infection or disease likely to affect successful wear of contact lenses or use of their accessory solutions.
- Previous refractive surgery.
- Astigmatism > 1.00D.
- Currently wearing ACUVUE OASYS for PRESBYOPIA.
- Other protocol inclusion/exclusion criteria may apply.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Lotrafilcon B / Senofilcon A Lotrafilcon B multifocal contact lens Lotrafilcon B, followed by Senofilcon A Lotrafilcon B / Senofilcon A Senofilcon A multifocal contact lens Lotrafilcon B, followed by Senofilcon A Senofilcon A / Lotrafilcon B Lotrafilcon B multifocal contact lens Senofilcon A, followed by Lotrafilcon B Senofilcon A / Lotrafilcon B Senofilcon A multifocal contact lens Senofilcon A, followed by Lotrafilcon B
- Primary Outcome Measures
Name Time Method Corrected Distance Binocular Visual Measurement in Normal Illumination Reported as Binocular Distance Visual Acuity After 1 week of wear Tested while reading charts distant to the subject with both eyes together in normal lighting. This outcome is measured in logMAR units (logarithm of the minimum angle of resolution). A logMAR acuity of 0.0 equates to 20/20 Snellen acuity and is considered normal. Positive logMAR values indicate poorer vision and negative values denote better visual acuity.
Corrected Near Binocular Visual Measurement in Normal Illumination Reported as Binocular Near Visual Acuity After 1 week of wear Tested while reading charts at 40 cm with both eyes together in normal lighting. This outcome is measured in logMAR units (logarithm of the minimum angle of resolution). A logMAR acuity of 0.0 equates to 20/20 Snellen acuity and is considered normal. Positive logMAR values indicate poorer vision and negative values denote better visual acuity.
- Secondary Outcome Measures
Name Time Method