Performance Evaluation of Reusable Contact Lenses When Worn For One Month By Habitual Soft Contact Lens Wearers

Inclusion Criteria: 1. Were at least 18 years of age and no older than 39 years, and had full legal capacity to volunteer; 2. Had read and signed an information consent letter; 3. Were willing and able to follow instructions and maintain the appointment schedule; 4. Self-reported having had a full eye examination in the previous two years; 5. Had healthy eyes with no health condition or medication that contra-indicate contact lens wear, in the opinion of the investigator; 6. Anticipated being able to wear the study lenses for at least 8 hours a day, 6 days a week; 7. Habitually wore spherical soft contact lenses, for the past 3 months minimum: It was preferred that all participants were habitual frequent replacement lens wearers. However, if this was not possible then no more than 5 participants could be habitual daily disposable lens wearers at each site, the rest had to be habitual frequent replacement lens wearers; \- For the frequent replacement wearers: No more than 3 could be habitual wearers of the Avaira Vitality™/ Serenity™ brand (or their equivalent private label brand name) and no more than 3 could be habitual wearers of AIR OPTIX® plus HydraGlyde® can be enrolled at each site; 8. Had refractive astigmatism no higher than -0.75DC in each eye; 9. Could be fit and achieve binocular distance vision of at least 20/30 Snellen (Available lens parameters are sphere +6.00 to -6.00D, 0.25D steps). Exclusion Criteria: 1. Were participating in any concurrent clinical or research study; 2. Had any known active ocular disease and/or infection that contraindicated contact lens wear; 3. Had a systemic or ocular condition that in the opinion of the investigator may have affected a study outcome variable; 4. Were using any systemic or topical medications that in the opinion of the investigator may have affect contact lens wear or a study outcome variable; 5. Had known sensitivity to the diagnostic sodium fluorescein used in the study; 6. Self-reported as pregnant, lactating or planning a pregnancy at the time of enrolment; 7. Had undergone refractive error surgery or intraocular surgery.