About this trial
The purpose of the study is to assess participant experience when wearing multifocal contact lenses compared to spherical contact lenses with reading glasses.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
At least 40 years of age.
Ability to give informed consent.
Subjects must have corrected distance visual acuity in both eyes equivalent to 20/25 or better at the screening visit.
Require an add power of +0.75 D or greater when tested at 40cm.
Disqualifiers
Current or active inflammation or infection as determined by the Investigator.
Current eye disease, infection or inflammation that affects the surface of the eye such as but not limited to moderate or greater blepharitis and ocular allergy.
History of refractive surgery.
Known history of allergy or sensitivity to contact lens solutions and/or sodium fluorescein.
Trial design
Crossover
Treatments tested in this trial
Multifocal contact lenses
DeviceMultifocal contact lenses
Spherical contact lenses
Devicespherical contact lenses
Treatment groups
Trial outcomes
Primary outcomes
Preference Survey
Percentage of participants who prefer the multifocal lenses compared to spherical lenses with reading glasses.
Sponsors and contacts
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