Get an early preview of the new iBridge Network

Access new technology search features and an extended innovation database with new transformative technologies
fed into the platform by our member Academic Institutions, Research Labs, SMEs, Startups


Peripheral Field Expension Device

Schepens Eye Research Institute
posted on 03/04/2009

Stroke, head injury, tumors commonly cause peripheral vision loss in a condition called hemianopia. Various devices (mirrors, prism, reversed telescopes) have been considered to improve patient’s awareness of obstacles on their blind side and improve mobility but none were very effective. The “Peli System” of field expansion (the simultaneous seen field is larger with the device) involves a monocular sector prism that expends the field via peripheral diplopia and confusion. The new system shifts the field expansion property of peripheral prisms from the upper and lower peripheral visual fields toward the central visual field while maintaining the lateral field expansion. The image-shifting device does not interfere with the normal vision of the wearer and can be fitted onto one or both carrier lenses of a pair of spectacles. There are about 800,000 stroke survivors per year in the US, about a third have hemianopia.

Innovation Details

File Number: SERI-141 

Other Information:

O.D. Eli Peli

Mary Chatterton, Director of Corporate Alliances.

IP Protection

License Online

This innovation currently is not available for online licensing. Please contact the case manager at Schepens Eye Research Institute for more information.

Request more info via email request more info

No people are currently associated with this innovation.

Download Technology Brief (PDF)

Followed By

Follow this innovation

No one is following this innovation.

Related Tags

Find more innovations

February 11, 2009

13,623 members 17,787 innovations 176 organizations


Scott Steele, coordinator of the CTSA-IP initiative and director of research alliances at the University of Rochester

"With more than 3,700 innovations from CTSA member institutions already on the iBridge Network, we're garnering worldwide exposure for the breakthroughs our researchers are accomplishing while moving toward our goal of increasing human health through clinical and translational research."  read more...