Performance Evaluation of Different Daily Disposable Multifocal Contact Lenses

Performance Evaluation of Different Daily Disposable Multifocal Contact Lenses

The objective of the study was to compare the lens performance of two daily disposable multifocal contact lenses.

This was a prospective, randomized, participant-masked, crossover, bilateral dispensing study. Each lens type was worn for approximately 3-4 weeks: the lens prescription of each lens type was optimized after a 3-8 days wearing experience, then participants began a 2 week (14-21 day) wear period.

Inclusion Criteria:

1. Were at least 42 years of age and had full legal capacity to volunteer;

2. Had read and signed an information consent letter;

3. Self-reported having had a full eye examination in the previous two years;

4. Anticipated being able to wear the study lenses for at least 8 hours a day, 5 days a week

5. Were willing and able to follow instructions and maintain the appointment schedule;

6. Habitually wore multifocal soft contact lenses, for the past 3 months minimum

   • Maximum of 7 participants per site were habitual wearers of daily disposable lenses
   • Maximum of 3 habitual wearers per site of 1-Day Acuvue Moist Multifocal
   • Maximum of 1 habitual wearer per site of ACUVUE OASYS MAX 1-Day MULTIFOCAL
   • Maximum of 3 habitual wearers per site of MyDay Multifocal
   • Maximum of 7 participants per site were habitual wearers of frequent replacement lenses
   • Maximum of 1 habitual wearer per site of ACUVUE OASYS for PRESBYOPIA

7. Had refractive astigmatism no higher than -0.75DC in each eye;

8. Were presbyopic and required a reading addition of at least +0.75D and no more than +2.50D;

9. Could be fit and achieved binocular distance vision of at least 20/30 Snellen (or +0.20 logMAR) which participants also deemed to be 'acceptable', with the available study lens parameters (powers +4.00 to -6.00DS, near addition as per study design)

Exclusion Criteria:

A person was excluded from the study if they:

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 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 affected contact lens wear or a study outcome variable;
5. Had known sensitivity to the diagnostic sodium fluorescein to be 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 interocular surgery.