Evaluating the Success of Habitual Multifocal Wearers When Refit With a New Lens Design

Inclusion Criteria: 1. Is at least 42 years of age and has full legal capacity to volunteer; 2. Has read and signed an information consent letter; 3. Self reports having a full eye examination in the previous two years; 4. Anticipates being able to wear the study lenses for at least 8 hours a day, 5 days a week; 5. Is willing and able to follow instructions and maintain the appointment schedule; 6. Habitually wears multifocal soft contact lenses, for the past 3 months minimum; 7. Has refractive astigmatism no higher than -0.75DC; 8. Is presbyopic and requires a reading addition of at least +0.75D and no more than +2.50D; 9. Can be fit and achieve binocular distance vision of at least 20/30 Snellen (or +0.20 logMAR) which participants also deem to be 'acceptable', with the available study lens parameters (powers +4.00 to -6.00DS) Exclusion Criteria: 1. Is participating in any concurrent clinical or research study; 2. Has any known active\* ocular disease and/or infection that contraindicates contact lens wear; 3. Has a systemic condition that in the opinion of the investigator may affect a study outcome variable; 4. Is using any systemic or topical medications that in the opinion of the investigator may affect contact lens wear or a study outcome variable; 5. Has known sensitivity to the diagnostic sodium fluorescein used in the study; 6. Self-reports as pregnant, lactating or planning a pregnancy at the time of enrolment; 7. Has undergone refractive error surgery or intraocular surgery.