The purpose of this study was to evaluate the performance of Opti-Free® PureMoist® Multi-Purpose Disinfecting Solution (MPDS) compared to Biotrue™ Multipurpose Solution (MPS) in silicone hydrogel contact lens wearers.

In this 2-period crossover study, eligible participants were randomized to either Opti-Free® PureMoist® Multi-Purpose Disinfecting Solution or Biotrue™ Multipurpose Solution in Period 1 for use with their habitual contact lenses, after which they switched to the alternate solution in Period 2. Each period was 30 days in length. A 2-day washout period during which participants refrained from using a multi-purpose contact lens solution preceded Period 1 and Period 2.

Inclusion Criteria:

• Wear single vision sphere silicone hydrogel contact lenses (CooperVision™ Biofinity®, Alcon® Air Optix® Aqua, Bausch+Lomb® PureVision™ or ACUVUE® Oasys™) on a daily wear basis (a minimum of 8 hours per day, 5 days a week) for at least one month prior to Visit 1;
• Willing to wear lenses on a daily wear basis (a minimum of 8 hours per day, 5 days a week) for the duration of the study, and wear lenses for 16 hours on two days during the study;
• Must have habitually used a Biguanide preserved multi-purpose solution (other than Biotrue) for at least 30 days prior to Visit 1;
• Vision correctable to 20/30 Snellen (feet) or better in each eye at distance with pre-study contact lenses at Visit 1;
• Have access, capability and willingness to review and answer text messages;
• Read, sign, and date IRB/IEC approved informed consent and privacy document before enrollment;
• Willing to follow the study procedures and visit schedule;
• Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

• Need to wear lenses on an extended wear (i.e. overnight) basis during the study;
• Known sensitivity or intolerance to Biguanide, polyquaternium-1 (POLYQUAD), or ALDOX preserved lens care products;
• Monocular (only one eye with functional vision) or fit with only one lens;
• Wearing toric or multifocal contact lenses or fit with monovision;
• Use of additional lens care products other than a Biguanide preserved multipurpose solution such as daily or enzyme cleaners within the one week prior to Visit 1;
• Use of topical ocular over-the-counter (OTC) or prescribed topical ocular medications, with the exception of rewetting drops, within 7 days prior to Visit 1;
• Abnormal ocular condition observed during the Visit 1 slit-lamp examination;
• Current or history of ocular infections or severe inflammation within 6 months prior to Visit 1;
• Ocular surgery within the 12 months prior to Visit 1;
• Participation in any other clinical trial within 30 days of enrollment;
• Other protocol-defined exclusion criteria may apply.

This analysis population includes all participants who were exposed to a study regimen (test or control).

Adverse events (AE) were collected for the duration of the study (4 months). AEs were elicited by non-direct questioning of the participant and spontaneous reporting by the participant. AEs were recorded at every visit.

An AE was defined as any untoward medical occurrence, unintended disease or injury, or untoward clinical signs in subjects, users or other persons, whether or not related to the medical device. This analysis population includes all participants who were exposed to a study regimen (test or control), based on treatment-specific exposure.