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Which lens after cataract surgery gives you the best sight at all distances?

NCT ID NCT07715071

Disease control Sponsor: Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 20, 2026 · Last updated Jul 21, 2026 · Updated 1 time

Summary

This trial compares two types of artificial lens implants used during cataract surgery: enhanced monofocal lenses and extended depth-of-field lenses. The goal is to see which one provides better vision at far, intermediate, and near distances, and whether one causes fewer visual disturbances like glare or halos. The study includes adults aged 45 to 80 with bilateral cataracts who have functional visual demands.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
intraocular lens implant (enhanced monofocal or extended depth of field)
What this could lead to
If successful, this could help cataract patients choose a lens that offers clearer vision at multiple distances, reducing dependence on glasses.
What could go wrong
This is a small, early-stage trial with 90 participants, so results may not apply to everyone. Some patients may experience visual disturbances like glare or halos.

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

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

About 90 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Mar 2027

An estimate. End dates often move.

Lead sponsor

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

45 to 80 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

INCLUSION CRITERIA: * Patients with bilateral cataracts at different stages of development. * Patients with functional visual demands. * Age between 45 and 80 years. * Male or female sex. * Ability to provide informed consent. EXCLUSION CRITERIA: Preoperative Exclusion Criteria • Medical criteria: Corneal astigmatism greater than 1.0 diopter. Pre-existing ocular pathology. Previous refractive surgery. Previous corneal or intraocular implant. Poor general health status or potentially reduced neuroadaptation capacity due to previous stroke, Alzheimer's disease, other forms of dementia, etc. Unrealistic postoperative visual expectations. Intraoperative Withdrawal Criteria * Vitreous loss. * Pupillary trauma. * Factors likely to affect the medium-term performance of the intraocular lens: Zonular damage, Capsulorhexis tear or injury, Capsular rupture, Endothelial damage.

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Conditions

The condition(s) this trial relates to.

cataract

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cataract

How to take part

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  1. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

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  2. A doctor treating you

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