Clinical trials · California
Presbyopia clinical trials in California
We’re tracking 5 recruiting presbyopia studies with a site in California, each written for real people, not researchers.
Recruiting studies in California
- NCT06060041Recruiting
Study of the IC-8 Apthera lens after cataract surgery
This study is for people who already have an IC-8 Apthera lens in one eye and need treatment for clouding on the lens capsule (posterior capsule opacification). It evaluates how well this lens works over time.
Newport Beach, CaliforniaAges 22 years+ - NCT06902584Recruiting
Comfilcon A contact lens study for current wearers
This study is for people who currently wear Comfilcon A contact lenses (including sphere, toric, multifocal, toric multifocal, or Energys) and have used them for at least a year. It also requires that you sometimes sleep in your lenses. The purpose is to gather ongoing information about these lenses.
Berkeley, CaliforniaAges 8–75 - NCT07284966Recruiting
Comfort and vision with TOTAL30 multifocal lenses
This trial tests how comfortable and clear your vision is with TOTAL30 multifocal contact lenses. If you already wear multifocal soft lenses and are 40+, you may qualify to help understand how these lenses perform in daily life.
San Diego, CaliforniaAges 40 years+ - NCT07444658Recruiting
Comparing two daily disposable multifocal contact lenses
This study tests two types of soft contact lenses that help with both distance and near vision. If you wear multifocal lenses or use a monovision setup, this trial may help find which lens works better for your daily activities.
Berkeley, CaliforniaAges 18 years+ - NCT07638943Recruiting
Switching multifocal contact lenses to improve comfort
This study compares two brands of multifocal contact lenses (lenses that help you see at multiple distances) in people over 40 who are currently happy with their INFUSE One-Day Multifocal lenses. Researchers want to see if switching to DAILIES TOTAL1 Multifocal lenses provides similar or better comfort and vision.
La Jolla, CaliforniaAges 40 years+
Where these studies are running in California
Institutions with a site for the recruiting presbyopia studies listed above.
- Feinerman Vision Center
- Gordon Schanzlin New Vision Institute
- Scripps Optometric Group
- University of Berkeley
- University of California, Berkeley
What taking part in a presbyopia study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Presbyopia trials in other states
Common questions
- Are there presbyopia clinical trials in California?
- Yes. We're currently tracking 5 recruiting presbyopia studies with a site in California, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a presbyopia study in California?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in California to take part?
- Not necessarily. These studies have a site in California, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a presbyopia trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New presbyopia studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.