Multiplexing Prism Fitting for Field Expansion of Monocular Vision

Completed · Not applicable

Conditions studied: One Eye Blindness, Blind Left Eye, Blind Right Eye

In brief

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.

Key facts

Study ID

NCT06027216

Run by

Massachusetts Eye and Ear Infirmary

People needed

30

Starts

2023-12-27

Expected to finish

2024-12-31

Last updated by the study team

2025-05-08

Who can join

Age: 16 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• 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

You may not qualify if…

• 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)

Where it is running

• Schepens Eye Research Institute — Boston, Massachusetts, United States

Full record on ClinicalTrials.gov

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