Optimizing Low Vision Rehabilitation in Emotionally Distressed Patients With Inherited Retinal Diseases

March 20, 2026 updated by: K. Thiran Jayasundera, University of Michigan

The purpose of this study is to understand if combining Low Vision Rehabilitation (LVR) with Emotional Regulation Therapy (ERT) can help people with inherited retinal diseases (IRDs) that experience emotional distress related to participants' vision loss.

The study team hypothesize that treatment with LVR will produce measurable functional gains and that these effects will be enhanced by ERT-linked improvement among the subgroup of IRD patients with elevated vision-related anxiety.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

180

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 Contact

Study Locations

    • Michigan
      • Ann Arbor, Michigan, United States, 48105
        • Recruiting
        • University of Michigan
        • Contact:
        • Principal Investigator:
          • K. Thiran Jayasundera, MD, MS

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Diagnosed with vision impairment with IRD etiology
  • Must have had a clinical exam with an IRD specialist within the three months of assignment to Arm
  • Have had a Goldmann visual field that was tested with III-4e isopter within the last year
  • Have a disability greater than zero theta in any of the domains of Michigan Retinal Dystrophy Questionnaire (MRDQ)
  • Have an indication from the IRD specialist that the ocular condition will not deteriorate over the next 1- year
  • Able to participate in 10 weeks of ERT sessions while being physically located in Michigan (these will take place in the first 10 months of the study)

Exclusion Criteria:

  • Having other ocular comorbidities including those associated with an IRD such as control of cystoid macular edema (CME)
  • Functional needs regarding low vision (i.e. activities of daily living) have been adequately addressed per a study low vision specialist
  • Current mental health therapy
  • The participant must not have an elevated suicidal intention (SI) or suicide risk based on Patient Health Questionnaire (PHQ-9) further information collected at screening (If suicidal intentions are identified, the study staff will complete the suicide protocol (per protocol)
  • If the participant is using medication for mental health or psychiatry concerns, participants must be on a stable dose of the medication (1-month of taking), otherwise will be excluded
  • Inability to complete study task requirements

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Arm 1 - Low Vision Rehabilitation LVR
Participants (N ~ 60) without vision-related anxiety will be designated to Arm 1 and receive LVR. This group is intended to be a comparison for the higher vision-related anxiety groups. For this reason, these patients may be placed on a waitlist (meaning participants low-vision rehabilitation may be delayed), until the study team can match with someone in one of the other groups.

The initial session will be with an LVR specialist that will recommend vision-enhancing devices and techniques to improve participant's vision and mobility functionality depending on needs. The devices will be given at no cost and include, but are not limited to: magnifiers that participants can hold or wear, glasses attachments that help filter out light to see better, or items that help with glare or seeing color. This session will be followed by at least one session with an occupational therapist, that will train participants to use the devices (take home and use) and recommend/teach ways to achieve functional goals.

Most participants will be asked to attend 2-4 visits, but additional visits may be needed depending on needs and progress toward functional goals. Additional visits if orientation and mobility training is also recommended. Participants will be asked to share experiences approximately 1-week after all visits.

Experimental: Arm 2 - ERT (after randomization) and then concurrent with LVR
Participants with vision-related anxiety (must meet this per protocol by self-reports) randomized to this arm will receive immediate ERT. The LVR therapy will start approximately during 4-6 sessions of ERT.

The initial session will be with an LVR specialist that will recommend vision-enhancing devices and techniques to improve participant's vision and mobility functionality depending on needs. The devices will be given at no cost and include, but are not limited to: magnifiers that participants can hold or wear, glasses attachments that help filter out light to see better, or items that help with glare or seeing color. This session will be followed by at least one session with an occupational therapist, that will train participants to use the devices (take home and use) and recommend/teach ways to achieve functional goals.

Most participants will be asked to attend 2-4 visits, but additional visits may be needed depending on needs and progress toward functional goals. Additional visits if orientation and mobility training is also recommended. Participants will be asked to share experiences approximately 1-week after all visits.

There will be ten 1-hour weekly sessions of specialized psychotherapy with an ERT-trained therapist. These are typically done virtually but may be able to provide in-person sessions to those where this is needed. At the beginning of each session, the therapist will give participant's several questionnaires to learn about participant's experience with ERT. Questionnaires will also be completed after all sessions are completed.
Experimental: Arm 3- LVR with delayed ERT
Participants with vision-related anxiety (must meet this per protocol by self-reports) randomized to this arm will receive LVR with delayed ERT.

The initial session will be with an LVR specialist that will recommend vision-enhancing devices and techniques to improve participant's vision and mobility functionality depending on needs. The devices will be given at no cost and include, but are not limited to: magnifiers that participants can hold or wear, glasses attachments that help filter out light to see better, or items that help with glare or seeing color. This session will be followed by at least one session with an occupational therapist, that will train participants to use the devices (take home and use) and recommend/teach ways to achieve functional goals.

Most participants will be asked to attend 2-4 visits, but additional visits may be needed depending on needs and progress toward functional goals. Additional visits if orientation and mobility training is also recommended. Participants will be asked to share experiences approximately 1-week after all visits.

There will be ten 1-hour weekly sessions of specialized psychotherapy with an ERT-trained therapist. These are typically done virtually but may be able to provide in-person sessions to those where this is needed. At the beginning of each session, the therapist will give participant's several questionnaires to learn about participant's experience with ERT. Questionnaires will also be completed after all sessions are completed.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Determine if LVR improves vision-related disabilities and distress measures by the Michigan Vision-related Anxiety Questionnaire (MVAQ)
Time Frame: Baseline to 6 month
The Michigan Vision-related Anxiety Questionnaire is a 14 -item questionnaire designed to assess anxiety/distress related to vision impairments. Responses can range between: Never, Sometimes, Frequently, Always, N/A for Non-Vision Reasons. The questionnaire provides 2 scores (one for anxiety about rod function and one for anxiety about cone function). Both of those scores fall between -3 and 3 (an increasing score indicates higher levels of anxiety).
Baseline to 6 month
Determine if LVR improves vision-related disabilities and distress measures by the Michigan Retinal Degeneration Questionnaire (MRDQ)
Time Frame: Baseline to 6 month
The Michigan Retinal Degeneration Questionnaire is a 59-item questionnaire aimed to assess vision-related functional impairment. Responses can range between: None, A little difficulty, Moderate difficulty, Extreme difficulty, My vision is too poor to do this, N/A for non-vision reasons. The questionnaire provides 7 scores (for 7 different domains of vision) and also range from -3 to 3 (0 is centered at the mean trait level of the population and extreme values for theta (i.e., -3, +3) are indicative of low or high visual dysfunction based on item responses).
Baseline to 6 month
Determine if LVR measures are different between low-distress and high-distress groups accessed at month-6 by MVAQ
Time Frame: Baseline, 6 months
Comparison between low-distress arm and high-distress arm prior to ERT treatment at month-6. The Michigan Vision-related Anxiety Questionnaire is a 14 -item questionnaire designed to assess anxiety/distress related to vision impairments. The Michigan Vision-related Anxiety Questionnaire is a 14 -item questionnaire designed to assess anxiety/distress related to vision impairments. Responses can range between: Never, Sometimes, Frequently, Always, N/A for Non-Vision Reasons. The questionnaire provides 2 scores (one for anxiety about rod function and one for anxiety about cone function). Both of those scores fall between -3 and 3 (an increasing score indicates higher levels of anxiety).
Baseline, 6 months
Determine if LVR measures are different between low-distress and high-distress groups accessed at month-6 by MRDQ
Time Frame: Baseline, 6 months

Comparison between low-distress arm and high-distress arm prior to ERT treatment at month-6.

The Michigan Retinal Degeneration Questionnaire is a 59-item questionnaire aimed to assess vision-related functional impairment. Responses can range between: None, A little difficulty, Moderate difficulty, Extreme difficulty, My vision is too poor to do this, N/A for non-vision reasons. The questionnaire provides 7 scores (for 7 different domains of vision) and also range from -3 to 3 (0 is centered at the mean trait level of the population and extreme values for theta (i.e., -3, +3) are indicative of low or high visual dysfunction based on item responses).

Baseline, 6 months
Determine if adjunctive ERT treatment in the high-distress arms improves vision-related disabilities and vision-related distress measures greater than LVR alone measured by MVAQ
Time Frame: Baseline, 6 months
The Michigan Vision-related Anxiety Questionnaire is a 14 -item questionnaire designed to assess anxiety/distress related to vision impairments. Responses can range between: Never, Sometimes, Frequently, Always, N/A for Non-Vision Reasons. The questionnaire provides 2 scores (one for anxiety about rod function and one for anxiety about cone function). Both of those scores fall between -3 and 3 (an increasing score indicates higher levels of anxiety).
Baseline, 6 months
Determine if adjunctive ERT treatment in the high-distress arms improves vision-related disabilities and vision-related distress measures greater than LVR alone measured by the MRDQ
Time Frame: Baseline, 6 months
The Michigan Retinal Degeneration Questionnaire is a 59-item questionnaire aimed to assess vision-related functional impairment. Responses can range between: None, A little difficulty, Moderate difficulty, Extreme difficulty, My vision is too poor to do this, N/A for non-vision reasons. The questionnaire provides 7 scores (for 7 different domains of vision) and also range from -3 to 3 (0 is centered at the mean trait level of the population and extreme values for theta (i.e., -3, +3) are indicative of low or high visual dysfunction based on item responses).
Baseline, 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Determine if LVR improves vision-related disabilities and distress measures by the Short Form Survey (SF-36)
Time Frame: Baseline to 6 month
The survey has 36-items in which participants select responses. It measures and produces scores (0-100) for 8 domains (Physical functioning, Role limitations due to physical health, Bodily pain, General health perceptions, Vitality (energy/fatigue), Social functioning, Role limitations due to emotional problems, Mental health (emotional well-being) Scores presented on a 0-100 scale, with scores above 50 generally indicating better-than-average health-related quality of life, and scores below 50 suggesting below-average health.
Baseline to 6 month
Determine if adjunctive ERT treatment improves LVR treatment adherence greater than LVR alone measured by the Psychosocial Impact of Assistive Devices Scale (PIADS)
Time Frame: 6 months

The Psychosocial Impact of Assistive Devices (PIADS) is a 26-item self-reported questionnaire designed to assess the effects of an assistive device on functional independence, well-being and quality of life.

The PIADS Uses a 7-point scale for each item, ranging from -3 to +3. A score of -3 indicates the maximum negative impact, a score of 0 indicates no impact or neutral effect, and a score of +3 indicates the maximum positive impact of devices.

6 months
Determine if adjunctive ERT treatment improves overall emotional distress greater than LVR alone measured by the Patient Health Questionnaire (PHQ-9)
Time Frame: 6 months
The Patient Health Questionnaire is a 9-item questionnaire designed to assess depression symptoms. Participants answer questions from Not at all (0) -Nearly every day (3). The score ranges from 0 to 27, the higher scores mean more serious depression.
6 months
Determine if adjunctive ERT treatment improves overall emotional distress greater than LVR alone measured by the Perceived Stress Scale (PSS)
Time Frame: 6 months
The Perceived Stress Scale is a 10-item questionnaire aimed to assess participants perceived stress. Items are scored from never (0) - very often (4). Scores rage from 0-40 with higher scores indicating higher stress.
6 months
Determine if adjunctive ERT treatment improves LVR treatment adherence greater than LVR alone measured by the Daughty Device Compliance Questionnaire (DDCQ)
Time Frame: 6 months
The Daughty Device Compliance Questionnaire (DDCQ) is a 5-item self-reported questionnaire designed to evaluate the adherence to and effectiveness of medical devices in daily use. It assesses factors such as user satisfaction, ease of use, and the impact on health outcomes. Completed for each device participants receive.
6 months
Determine if adjunctive ERT treatment improves overall emotional distress greater than LVR alone measured by the Generalized Anxiety Disorder (GAD)-7
Time Frame: 6 months
The 7-item GAD-7 will measure symptoms of anxiety. Items are scored not at all (0) -Nearly every day (3), scores range from 0-21. Higher scores indicate more symptoms of anxiety.
6 months
Determine if adjunctive ERT treatment improves overall emotional distress greater than LVR alone measured by the Rumination-Reflection Questionnaire (RRQ)
Time Frame: 6 months
The Rumination-Reflection Questionnaire is a 24-item measure of self-reflection tendencies. Items are scored from strongly disagree (1) - Strongly agree (5). Scores range from 24 to 120; a higher score means a worse outcome.
6 months
Determine if adjunctive ERT treatment improves overall emotional distress greater than LVR alone measured by the Penn State Worry Questionnaire (PSWQ)
Time Frame: 6 months
The Penn State Worry Questionnaire is a 16-item self-report scale designed to measure the trait of worry in adults. Items are scored from not at all typical of me (1) - Very typical of me (5). The range of scores are from 16-80 with higher scores indicating higher level of worry.
6 months

Collaborators and Investigators

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

Investigators

  • Principal Investigator: K. Thiran Jayasundera, MD, MS, University of Michigan

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 (Actual)

January 13, 2025

Primary Completion (Estimated)

November 24, 2028

Study Completion (Estimated)

November 24, 2028

Study Registration Dates

First Submitted

October 18, 2024

First Submitted That Met QC Criteria

October 18, 2024

First Posted (Actual)

October 22, 2024

Study Record Updates

Last Update Posted (Actual)

March 23, 2026

Last Update Submitted That Met QC Criteria

March 20, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

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

product manufactured in and exported from the U.S.

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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