N/A N=30 Device Feasibility

Multiplexing Prism Fitting for Field Expansion of Monocular Vision

One Eye Blindness · Blind Left Eye · Blind Right Eye

Bottom Line

View on ClinicalTrials.gov: NCT06027216 ↗

Enrolled (actual)

Serious AEs

0.0%

Results posted

May 2025

Primary outcome: Primary: Gain in Visual Field With the Multiplexing Prism — 24 degrees

Study Design & Population

Study type: Interventional
Phase: N/A
Interventions: Multiplexing Prism (Device)
Age: Pediatric, Adult, Older Adult · 16+ yrs
Sex: All
Sponsor: Massachusetts Eye and Ear Infirmary
Primary completion: Oct 2024

Outcome Measures

Outcome	Result	p-value
PRIMARY Gain in Visual Field With the Multiplexing Prism	24	—
SECONDARY Maximum Extent of Nasal Visual Field With the Multiplexing Prism	79	—

Summary

The investigators are developing an assistive device, known as multiplexing prism that expands the field of view for individuals with acquired monocular vision (loss of an eye). The investigators are testing a simplified design and fitting protocol to provide field expansion for individuals with acquired monocular vision.

Eligibility Criteria

Inclusion Criteria

No medical health issues such as seizures, motor movements problem
Loss of vision in one eye (less than 20/200) for >1 year)
Visual acuity of the seeing eye: Better than 20/32 visual acuity with correction
No visual field defect in the seeing eye (nasal field of at least >45degree)
No medical health issues such as seizures, motor movements problem

Exclusion Criteria

Patients with any physical or mental disabilities, including cognitive dysfunction, balance problems, or other deficits that could impair their ability to respond to the stimuli presented in this study will be excluded
Any person with motor movements problem (e.g., unable to use extremities)

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT06027216). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.