New lens material may sharpen vision after cataract surgery
NCT ID NCT07158177
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two different materials used in multifocal lenses for cataract surgery. 40 people will receive one type of lens in each eye. The goal is to see which lens provides better contrast sensitivity (ability to see differences in light and dark) 3 months after surgery. This is a small, early-stage study that may help improve lens choices for future patients.
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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 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Oct 2026
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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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Patients ≥ 18 years of age * Patients presenting for cataract surgery in routine clinical practice and eligible for multifocal IOL implantation (toric and non-toric) * Patients with grade 2/3 cataract density and comparable visual acuity in both eyes * Patient with a pregnancy test (negative pregnancy test), if applicable * Patient with signed consent to participate in the study * Patient affiliated to a social security scheme or entitled beneficiary Exclusion Criteria: * Children \< 18 years of age * Pregnancy or breast-feeding in progress or planned during the study. * History of anterior (cornea, anterior chamber, sulcus) or posterior (uveal, vitreoretinal) segment pathology, including retinal vascular occlusive disease, retinal detachment or peripheral retinal laser photocoagulation, AMD, glaucoma. * Any inflammation of the anterior or posterior segment, whatever the etiology, and/or history of any disease with intraocular inflammatory repercussions. * Clinically significant corneal pathology (epithelial, stromal and/or endothelial) that could have an impact on visual results. * Clinically significant moderate or severe dry eye that could affect study measurements. * History of intraocular or corneal surgery (refractive or trauma-related). * Presence or history of amblyopia or monofixation syndrome. * Subjects with conditions that increase the risk of zonular disruption during the phacoemulsification procedure that may affect the centration or postoperative orientation of the IOL. * Any other planned eye surgery, including, but not limited to, limbal relaxing incision (LRI)/astigmatic keratotomy and laser refractive surgery (LASIK). * Irregular astigmatism identified by corneal topography * Patients under guardianship, curatorship or safeguard of justice, as well as pregnant or breast-feeding women (article L1121-5 of the CSP).1.1 * Patient under AME
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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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Assistance Publique - Hôpitaux de Paris, Ophtalomopôle - Hôpital COCHIN
RECRUITINGParis, Île-de-France Region, 75014, France
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Other studies related to the condition(s) this trial covers.
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