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The objective of the study was to compare the lens performance of two daily disposable multifocal contact lenses.
Full description
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.
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Inclusion criteria
Were at least 42 years of age and had full legal capacity to volunteer;
Had read and signed an information consent letter;
Self-reported having had a full eye examination in the previous two years;
Anticipated being able to wear the study lenses for at least 8 hours a day, 5 days a week
Were willing and able to follow instructions and maintain the appointment schedule;
Habitually wore multifocal soft contact lenses, for the past 3 months minimum
Had refractive astigmatism no higher than -0.75DC in each eye;
Were presbyopic and required a reading addition of at least +0.75D and no more than +2.50D;
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:
Primary purpose
Allocation
Interventional model
Masking
59 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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