Performance Evaluation of Different Daily Disposable Silicone Hydrogel Contact Lenses

This study is a prospective, bilateral eye, double masked, randomized, 1-week crossover, daily wear design involving two different daily disposable lens types. Each lens type will be worn for approximately one week.

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.