Clinical Trial of Multi-Periscopic Prism Glasses for Hemianopia
Public ClinicalTrials.gov record NCT04827147. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Randomized Controlled Multicenter Clinical Trial of Multi-Periscopic Prism Glasses for Homonymous Hemianopia
Study identification
- NCT ID
- NCT04827147
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Massachusetts Eye and Ear Infirmary
- Other
- Enrollment
- 64 participants
Conditions and interventions
Conditions
Interventions
- Fresnel Peripheral Prism (FPP) glasses Device
- Multi-Periscopic Prism (MPP) glasses Device
Device
Eligibility (public fields only)
- Age range
- 7 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 2, 2022
- Primary completion
- Apr 29, 2025
- Completion
- Apr 29, 2026
- Last update posted
- Mar 12, 2026
2022 – 2026
United States locations
- U.S. sites
- 8
- U.S. states
- 5
- U.S. cities
- 6
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UAB Center for Low Vision Rehabilitation, Callahan Eye Hospital | Birmingham | Alabama | 35233 | — |
| UCHealth Sue Anschutz-Rodgers Eye Center | Denver | Colorado | 80045 | — |
| Visual Health and Surgical Center | Palm Springs | Florida | 33461 | — |
| Illinois College of Optometry | Chicago | Illinois | 60616 | — |
| Schepens Eye Research Institute | Boston | Massachusetts | 02114 | — |
| New England College of Optometry | Boston | Massachusetts | 02215 | — |
| The Eye and Vision Center at MCPHS | Worcester | Massachusetts | 01608 | — |
| UMass Chan Medical School | Worcester | Massachusetts | 01655 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04827147, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 12, 2026 · Synced May 18, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04827147 live on ClinicalTrials.gov.