New contact lens swap could mean better comfort for aging eyes
NCT ID NCT07638943
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether people who already wear INFUSE One-Day multifocal contact lenses for presbyopia (age-related blurry near vision) feel more comfortable and see better after switching to DAILIES TOTAL1 multifocal lenses. About 30 satisfied lens wearers, aged 40 and older, will wear the new lenses for at least 8 hours a day, 5 days a week, for about 3 weeks. The main goal is to see how many have no dryness or discomfort after 2 weeks on the new prescription.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- DAILIES TOTAL1 Multifocal contact lenses (delefilcon A)
- What this could lead to
- If successful, this could show that switching to DAILIES TOTAL1 multifocal lenses provides better comfort and vision for people with presbyopia who already wear multifocal contacts.
- What could go wrong
- This is a small, early-stage study with only 30 participants and no comparison group, so results may not apply to everyone. Some people may not find the new lenses more comfortable.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2026
- Expected to finish
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Feb 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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40 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Age ≥40 years at enrollment Current satisfied wearer of Bausch + Lomb INFUSE One-Day Multifocal (kalifilcon A) in both eyes; Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8) score \<12 at baseline Minimum contact lens wear of ≥8 hours/day, ≥5 days/week, for ≥30 days prior to Visit 1 Best-corrected distance visual acuity ≥20/25 (0.18 LogMAR) or better in each eye Manifest refraction within study lens parameters (Sphere: +6.00 D to -10.00 D; Add: Low, Medium, High) Willing to wear DAILIES TOTAL1 Multifocal lenses for ≥8 hours/day, ≥5 days/week and complete all study questionnaires Able to provide written informed consent and comply with investigator instructions Exclusion Criteria: Active ocular infection, inflammation, or clinically significant ocular surface disease (e.g., severe dry eye, pterygium, keratoconus) Uncontrolled systemic disease or use of systemic medications known to significantly affect the tear film, unless on a stable dose for ≥90 days History of refractive surgery (LASIK, PRK, RK) or intraocular surgery (cataract or IOL implantation) Clinically significant ectropion, entropion, or trichiasis Baseline corneal fluorescein staining score \>2 in any single zone (NEI/Industry scale) Current monovision or modified monovision contact lens wear Pregnant or lactating participants Participation in another clinical trial within 30 days prior to enrollment
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Gordon Schanzlin New Vision Institute
RECRUITINGLa Jolla, California, 92037, United States
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