MacuMira Microcurrent Stimulation for Dark Adaptation in Dry Age-Related Macular Degeneration

October 30, 2026 updated by: Clarity Eye Institute

MacuMira Microcurrent Electrical Stimulation and Dark Adaptation in Dry Age-Related Macular Degeneration

Age-related macular degeneration (AMD) is an eye condition that affects the retina and can lead to progressive vision loss. This study will evaluate the effects of MacuMira microcurrent stimulation on dark adaptation in adults with intermediate dry AMD.

Participants will receive four in-office treatment sessions over 10 to 14 days. Dark adaptation and other measures of visual function and retinal health will be assessed before treatment and at one and three months after treatment.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Newmarket, Ontario, Canada, L3Y 7C5
        • Clarity Eye Newmarket
        • Contact:
      • Scarborough Village, Ontario, Canada, M1X 0C3
        • Clarity Eye Scarborough
        • Contact:
      • Vaughan, Ontario, Canada, L4K 0J4
        • Clarity Eye Vaughan
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adults ≥18 years of age.
  • Diagnosis of intermediate nonexudative age-related macular degeneration (AMD), according to the Beckman Classification.
  • Preliminary best-corrected visual acuity (BCVA) of 20/30 to 20/100 in the study eye.
  • Ability to provide informed consent and attend all required study visits over approximately 3 months.

Exclusion Criteria:

  • Presence of neovascular (wet) AMD or other macular or retinal diseases, including epiretinal membrane (ERM) or diabetic retinopathy.
  • Presence of geographic atrophy.
  • Intolerability to MacuMira treatment.
  • Baseline Rod Intercept Time (RIT) outside the eligibility range of 8.5 to 30 minutes.
  • Presence of other ocular or systemic conditions that may confound central visual function (e.g., advanced glaucoma or optic neuritis) or study assessments (e.g., dementia).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: MacuMira Treatment

All participants will receive four in-office sessions of transpalpebral microcurrent electrical stimulation using the MacuMira device over approximately 10 to 14 days.
Device: Transpalpebral microcurrent electrical stimulation

Four in-office sessions of transpalpebral microcurrent electrical stimulation using the MacuMira device. The first treatment session will occur within 7 days of screening/baseline, with the remaining sessions administered over approximately 10 to 14 days.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Rod Intercept Time (RIT) from Baseline to Month 1
Time Frame: Average of two baseline assessments (Screening/Baseline and Treatment Day 1) to the single assessment at Month 1.

Change in RIT, measured using the AdaptDx Pro dark adaptation test, from the average of two baseline assessments to the single RIT assessment at Month 1. The two baseline measurements will be obtained at the Screening/Baseline visit and Treatment Day 1, prior to the first MacuMira treatment, and averaged to establish baseline RIT. Each eligible eye will be assessed separately.
Average of two baseline assessments (Screening/Baseline and Treatment Day 1) to the single assessment at Month 1.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Rod Intercept Time (RIT) from Baseline to Month 3
Time Frame: Average of two baseline assessments (Screening/Baseline and Treatment Day 1) to the single assessment at Month 3.

Change in RIT, measured using the AdaptDx Pro dark adaptation test, from the average of two baseline assessments to the single RIT assessment at Month 3. Each eligible eye will be assessed separately.
Average of two baseline assessments (Screening/Baseline and Treatment Day 1) to the single assessment at Month 3.
Change in Best-Corrected Visual Acuity (BCVA)
Time Frame: Baseline to the single assessment at Month 1 and the single assessment at Month 3.

Change in BCVA, measured using the Early Treatment Diabetic Retinopathy Study (ETDRS) chart, from baseline to Month 1 and Month 3.
Baseline to the single assessment at Month 1 and the single assessment at Month 3.
Change in Contrast Sensitivity
Time Frame: Baseline to the single assessment at Month 1 and the single assessment at Month 3.

Change in contrast sensitivity, measured using the Pelli-Robson chart, from baseline to Month 1 and Month 3.
Baseline to the single assessment at Month 1 and the single assessment at Month 3.
Change in Low Luminance Deficit (LLD)
Time Frame: Baseline to the single assessment at Month 1 and the single assessment at Month 3.

Change in LDD from baseline to the single assessment at Month 1 and the single assessment at Month 3.
Baseline to the single assessment at Month 1 and the single assessment at Month 3.
Change in Vision-Related Quality of Life
Time Frame: Baseline to the single assessment at Month 1 and the single assessment at Month 3.

Change in vision-related quality of life, measured using the National Eye Institute Visual Function Questionnaire-25 (NEI VFQ-25), from baseline to the single assessment at Month 1 and the single assessment at Month 3.
Baseline to the single assessment at Month 1 and the single assessment at Month 3.

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Retinal Anatomic Stability Assessed by Optical Coherence Tomography (OCT)
Time Frame: Baseline to the assessment at Month 1 and the assessment at Month 3.

Assessment of retinal anatomic stability using OCT, including changes in macular thickness and macular volume, from baseline to Month 1 and Month 3.
Baseline to the assessment at Month 1 and the assessment at Month 3.
Changes in Fundus Autofluorescence (FAF)
Time Frame: Baseline to the assessment at Month 1 and the assessment at Month 3.

Assessment of changes in retinal appearance using FAF imaging from baseline to Month 1 and Month 3.
Baseline to the assessment at Month 1 and the assessment at Month 3.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Clarity Eye Institute

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
MacuMira

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 4, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 16, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 16, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 30, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 30, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 4, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 4, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 30, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CLRTY-MM-IIT-2026

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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