Mucin Balls and Corneal Inflammation Events

Inclusion Criteria: * At least 18 years * Free of any active anterior segment disorders that would preclude safe contact lens wear. Active anterior segment disorders and evidence of central microbial keratitis (via a large, \>1mm central deep stromal scar) are not allowed. However, evidence of past Contact Lens-Induces Peripheral Ulcer (CLPU) will be allowed so long as no more then three such scars are detected bilaterally. Evidence of more than 3 CLPU-like scars places excessive risk on the subject for a subsequent Corneal Infiltrate Event (CIE). * Correctable vision to 20/25 or better in each eye with spectacles. Amblyopia will be excluded. * Flat and steep corneal curvatures from keratometry readings must be between 39.00 and 48.50 D, respectively. * Own or agree to purchase a pair of spectacles that can be worn when lenses are removed or in cases of ocular discomfort or emergency. * Correctable vision to 20/30 or better at distance with dispensed contact lenses. Exclusion Criteria: * Use/wear of rigid gas permeable lenses within the last 30 days or Poly (methyl methacrylate) (PMMA) lenses within the last 3 months. * Immunocompromising disease or insulin dependent diabetes or any other systemic disease that in the investigator's opinion will affect ocular health or increase risk during extended wear. * Chronic use of systemic corticosteroids (with the exception of corticosteroid inhalers) or any other medication that in the investigator's opinion will affect ocular physiology or study participation. * Ocular disease or condition such as aphakia, corneal dystrophies, corneal edema, external ocular infection, iritis, or had any anterior segment surgery. * Use of any ocular medications in the last 2 weeks. * Less than or equal to grade 2 on any of the slit lamp observations of: upper tarsal papilla, corneal staining, corneal neovascularization, conjunctival injection, and lid erythema or scales. * Currently pregnant or lactating. * Smoker * Swimming routine of more than twice per month.