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

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

50

Phase

  • 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

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
Intervention / Treatment
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

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

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

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

Clarity Eye Institute

Collaborators

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)

November 4, 2026

Primary Completion (Estimated)

August 16, 2027

Study Completion (Estimated)

October 16, 2027

Study Registration Dates

First Submitted

October 30, 2026

First Submitted That Met QC Criteria

October 30, 2026

First Posted (Actual)

November 4, 2026

Study Record Updates

Last Update Posted (Actual)

November 4, 2026

Last Update Submitted That Met QC Criteria

October 30, 2026

Last Verified

October 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID 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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