Trials / Recruiting
RecruitingNCT04424979
Feasibility Tests for Various Prism Configurations for Visual Field Loss
Visual Field Expansion Through Innovative Multi-Periscopic Prism Design
- Status
- Recruiting
- Phase
- N/A
- Study type
- Interventional
- Enrollment
- 20 (estimated)
- Sponsor
- Massachusetts Eye and Ear Infirmary · Academic / Other
- Sex
- All
- Age
- 7 Years – 80 Years
- Healthy volunteers
- Not accepted
Summary
The investigators will develop and test different configurations of high-power prisms to expand the field of vision of patients with visual field loss to assist them with obstacle detection when walking. The study will involve multiple visits (typically four) to Schepens Eye Research Institute for fitting and testing with the prism glasses. The overall objective is to determine best designs and fitting parameters for implementation in prism devices for future clinical trials.
Conditions
- Hemianopia, Homonymous
- Tunnel Vision
- Visual Field Defect, Peripheral
- Visual Field Constriction Bilateral
- Visual Field Defect Homonymous Bilateral
Interventions
| Type | Name | Description |
|---|---|---|
| DEVICE | High power prisms | High power prisms designed to shift images from blind areas into portions of the wearer's remaining, seeing, field of vision |
Timeline
- Start date
- 2020-11-06
- Primary completion
- 2026-08-01
- Completion
- 2026-12-01
- First posted
- 2020-06-11
- Last updated
- 2025-09-23
Locations
1 site across 1 country: United States
Regulatory
- FDA-regulated device study
Source: ClinicalTrials.gov record NCT04424979. Inclusion in this directory is not an endorsement.