About this trial
This study will compare the performance of two daily disposable multifocal soft contact lenses.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
They are at least 18 years of age.
They understand their rights as a research participant and are willing and able to sign a Statement of Informed Consent.
They habitually use soft contact lenses (multifocal soft contact lenses, sphere lenses for monovision, or sphere lenses for distance vision correction and spectacles for near vision correction,) and have worn lenses at least 3 days a week for at least the past six months.
They have a minimum reading add of +0.75DS (based on their spectacle refraction)
Disqualifiers
They have an ocular disorder which would normally contra-indicate contact lens wear.
They have a systemic disorder which would normally contra-indicate contact lens wear.
They are aphakic.
They have had corneal refractive surgery.
Trial design
Crossover
Treatments tested in this trial
Lens A (kalfilcon A)
DeviceDaily disposable, soft contact lenses worn for one week
Lens B (stenfilcon A)
DeviceDaily disposable, soft contact lenses worn for one week
Treatment groups
Trial outcomes
Primary outcomes
Subjective Visual Acuity
High contrast high luminance (HCHL) distance binocular visual acuity (logMAR)
Sponsors and contacts
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CooperVision International Limited (CVIL)
Lead sponsor
University of California, Berkeley
Collaborator