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60,000 eyes tracked: scientists hunt genes behind cataract outcomes

NCT ID NCT03062085

Knowledge-focused Sponsor: Shanghai High Myopia Study Group Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study follows 60,000 people with cataracts, including those with high myopia (severe nearsightedness), to see how their vision changes after cataract surgery. Researchers will also look at genetic and environmental factors that might affect cataract development and surgical results. The goal is to better understand why some people have better vision outcomes than others.

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.

Participants

About 60,000 people

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

Started

Jan 2015

Expected to finish

Dec 2045

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.

Who is studied

Cataract patients who will undergo cataract surgery in Eye and ENT Hospital of Fudan University.

Ages

20 to 100 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: * Clinical diagnosis of cataract * Must be able to cooperate with the ophthalmic examination Exclusion Criteria: * Clinical diagnosis of mental illness * Mentally disabled

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Conditions

The condition(s) this trial relates to.

Anticipation, Genetic cataract degenerative myopia senile cataract

As listed by the trial registrant

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

Cataract Genetic anticipation High myopia Visual outcome

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Eye and ENT Hospital of Fudan University

    RECRUITING

    Shanghai, Shanghai Municipality, 200031, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.