At a glance
ClinicalIndex Comparison RecordN/AActive· 64 enrolled
Drug / intervention
Multi-Periscopic Prism (MPP) glasses +1 moredevice
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Randomized Controlled Multicenter Clinical Trial of Multi-Periscopic Prism Glasses for Homonymous Hemianopia
In Brief
A clinical study evaluating Multi-Periscopic Prism (MPP) glasses and Fresnel Peripheral Prism (FPP) glasses for Homonymous Hemianopia. Active but no longer recruiting, targeting 64 participants across 8 sites.
Detailed Summary
This clinical trial will evaluate the efficacy of two types of high-power prism glasses that provide field of view expansion for patients with homonymous hemianopia (the complete loss of half the field of vision on the same side in both eyes).
Study Details
Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsHomonymous Hemianopia
CountriesUnited States
CollaboratorsNational Eye Institute (NEI)
Timeline
N/AActiveOverdue
20222023202420252026
First PostedApr 2021
Enrollment StartOct 2022
Primary CompletionApr 2025
Study CompletionApr 2026
TodayJul 2026
First PostedApr 1, 2021
Enrollment StartOct 3, 2022
Primary CompletionApr 30, 2025
Study CompletionApr 30, 2026
TodayJul 2, 2026
Enrollment to primary: 2.6 yearsPosted 5.3 years ago
Interventions
Multi-Periscopic Prism (MPP) glassesdevice
Spectacles with multi-periscopic prisms mounted as oblique peripheral prism segments
Fresnel Peripheral Prism (FPP) glassesdevice
Spectacles with conventional permanent Fresnel prisms mounted as oblique peripheral prism segments