Myopia
Conditions
Keywords
contact lens wear, contact lens solution, corneal staining
Brief summary
The purpose of this study was to clinically evaluate lens care solutions used with soft contact lenses.
Detailed description
This study was conducted as a series of ten smaller studies in three countries using commercially available contact lens solutions per each country, ie, United Kingdom, France, and the Philippines. In each study, participants were assessed after use of up to 5 products (with one always being a control saline/blister pack solution) in randomized order in conjunction with one of the silicone hydrogel contact lenses. A total of 278 participants were enrolled in the 10 studies.
Interventions
DEVICEContact lens multi-purpose solution
Lens care solutions CE-marked for intended use. A fresh pair of contact lenses was soaked overnight in the test contact lens solution and a pre-cycled lens case prior to study visit, then worn for two hours on the day of the study visit. Up to four solutions were evaluated in randomized order with the same brand of contact lenses, and a minimum of 12 hours of no lens wear separated each wear period.
OTHERSaline/blister pack solution
A fresh pair of contact lenses was soaked overnight in saline prior to study visit or was inserted directly from the blister pack, then worn for two hours on the day of the study visit.
DEVICEContact lenses
CE-marked silicone hydrogel contact lenses soaked overnight for at least 10 hours prior to the study visit, then worn for two hours on the day of the study visit. A fresh pair of the same brand of contact lenses was used for each overnight soak (ie, 4 solutions plus saline/blister pack solution), and a minimum of 12 hours separated each wear period.
Sponsors
Alcon Research
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
SUPPORTIVE_CARE
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Have read, understood, signed, and dated the written Informed Consent. * Be an adapted and successful soft contact lens wearer on a daily wear basis for at least two weeks. * Vision correctable to at least 20/30 Snellen. * Other protocol-defined inclusion criteria may apply.
Exclusion criteria
* Topical ocular medication use. * History of hypersensitivity to any component of the study contact lens care systems. * Any slit-lamp finding of abnormal nature at the baseline visit assessment of each study period. * Pregnant, lactating, or planning a pregnancy. * Other protocol-defined
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Corneal Staining | 2 hours |
Secondary
| Measure | Time frame |
|---|---|
| Subjective Comfort | 2 hours |
Countries
United Kingdom
Outcome results
None listed