Performance Evaluation of Different Daily Disposable Silicone Hydrogel Contact Lenses.

Inclusion Criteria: Is between 18 and 35 years of age (inclusively) and has full legal capacity to volunteer; Has read and signed an information consent letter; Self-reports having a full eye examination in the previous two years; Anticipates being able to wear the study lenses for at least 8 hours a day, 7 days a week; Is willing and able to follow instructions and maintain the appointment schedule; Habitually wears soft contact lenses, for the past 3 months minimum; No more than 1/3 of participants should be habitual wearer of MyDay or MyDay Energys No more than 1/3 of participants should be habitual wearer of ACUVUE® OASYS MAX 1-Day or ACUVUE® OASYS 1-Day. Has refractive astigmatism no higher than -0.75DC in each eye; Can be fit and achieve binocular distance vision of at least 20/30 Snellen (Available lens parameters are sphere -1.00 to -6.00D, 0.25D steps). Exclusion Criteria: Is participating in any concurrent clinical or research study; Has any known active ocular disease and/or infection that contraindicates contact lens wear; Has a systemic condition that in the opinion of the investigator may affect a study outcome variable; Is using any systemic or topical medications that in the opinion of the investigator may affect contact lens wear or a study outcome variable; Has known sensitivity to the diagnostic sodium fluorescein used in the study; Self-reports as pregnant, lactating or planning a pregnancy at the time of enrolment; Has undergone refractive error surgery or intraocular surgery.