This study is evaluating the wear experience of a daily contact lens after 10, 12, 14, and 16 hours of lens wear.

Inclusion Criteria:

• Must be a current spherical contact lens wearer with longs days of lens wear.
• Distance visual acuity of 20/25 or better with current contact lenses.
• Good general health (defined by medication use that has not changed within the last month and the absence of medical conditions or treatments that are deemed confounding to the data as determined by the PI).
• Recent eye exam within the past year.
• Must have a working smart phone and be willing to download an app and/or receive and respond to texts.
• Ability to give informed consent.
• Willing to spend time for the study. Subjects will be required to attend three study visits, wear contact lenses on days between study visits, and must respond to push-notifications and/or texts on a smart phone for 5 days between visits 2 and 3.

Exclusion Criteria:

• No current ocular inflammation or infection as assessed by the study investigator.

2 months