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Eye imaging showdown: which device measures macular damage best?

NCT ID NCT05961332

Knowledge-focused Sponsor: University of Wisconsin, Madison 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 10, 2026 · Updated 1 time

Summary

This study compared two different eye imaging machines (Clarus and Optos) to see how well they measure geographic atrophy, a form of vision loss from age-related macular degeneration. Researchers enrolled 62 patients and took images with each device, then compared the measurements to the standard device. The goal was to find out which machine gives the most accurate results, helping doctors choose the best tool for tracking the disease.

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

62 people

The number who actually took part.

Started

Oct 2023

Finished

May 2025

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

50 years and older

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: * 50 years or older and may be either male or female and may be of any race * Established diagnosis of GA due to AMD * GA characteristics: GA area of between 1.25 mm² and 23 mm², with seventy percent of eyes having GA area ranging from 2.5 mm² to 17.5 mm². GA may be unifocal or multifocal. GA may be subfoveal or extrafoveal, with twenty-five percent of eyes having subfoveal GA. The presence of concurrent peripapillary atrophy will not exclude subjects from participation * Willing to participate as evidenced by signing the written informed consent Exclusion Criteria: * Unable to tolerate opthalmic imaging * Presence of neovascular AMD on OCT as confirmed by an ophthalmologist * Presence of significant media opacity preventing adequate retinal imaging * Presence of concurrent retinal disease which may confound assessment

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Conditions

The condition(s) this trial relates to.

age-related macular degeneration dry age related macular degeneration Geographic Atrophy macular degeneration

As listed by the trial registrant

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

Geographic atrophy Macular degeneration, age related

Contacts and locations

Locations

  • University of Wisconsin

    Madison, Wisconsin, 53705, United States

More trials for these conditions

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