Skip to main content

Restoring sight ― with photonics

By


Talk about changing life for the better: We've been hearing a lot lately about work by Daniel Palanker's group at Stanford University in restoring sight with a retinal prosthesis using a photovoltaic chip. In the video above, Palanker details the wireless system in the BiOS Hot Topics session at SPIE Photonics West last January.

The Stanford method is intended for people experiencing retinal degenerative disorders. It uses a photocell sub-retinal implant and an external projection system to relay images from an outside camera using near-infrared (IR) light directed to the photocell array, which is made from a thinned silicon safer that is flexible enough to match the contour of the eye.

The surgical implant is a simple procedure, and provides the patient with a near-normal gaze angle. Using light in the IR spectrum avoids complications from viable retina tissues.

Research team member James Loudin received the Pascal Rol Foundation Award, sponsored by Topcon Advanced Biomedical Imaging Lab, at Photonics West in 2011 in recognition of the work.

Read more about the work in the Stanford University press release or view the abstract and access the group's latest publication in the SPIE Digital Library.
Labels:

Comments

Post a Comment

Popular posts from this blog

An International Inspiration: Attending the International Day of Light 2019 Celebration in Trieste

By
John Dudley and Perla Viera in Trieste Perla Marlene Viera González, an SPIE Early Career Professional Member working at the Universidad Autonoma de Nuevo Leon, represented the SPIE Student and ECP Membership at the International Day of Light 2019 celebration in Trieste, 16 May. She shares with this community her experiences at the International Centre for Theoretical Physics (ICTP) and the impact of taking part in this annual day of recognizing light. The International Day of Light brings together culture and science.  — SPIE John Dudley, Steering Committee Chair of IDL This phrase was part of the message given by John Dudley during the introduction to the International Day of Light 2019 at the International Centre for Theoretical Physics (ICTP) in Trieste, Italy. And it reflects the importance of bringing together the science, technology, culture, and art that involves light in this emblematic celebration. This year, the IDL celebration was about “Illuminating Ed...
Post a Comment
Read more

Optics Does That? With Dr. Ashleigh Haruda, Zooarchaeologist.

By
Dr. Ashleigh Haruda is a zooarchaeologist. Dr. Ashleigh Haruda She examines animal bones found at archaeological sites to investigate the relationship between animals and ancient human societies. These bones reveal information about ancient societies including diet, trade, migration, and market forces. For her doctoral research, she studied pastoralists living in the Central Asian steppe in the Late and Final Bronze Age (1500-800 B.C.E.). These were people who did not practice agriculture, but lived off of their animals, including sheep. “Primarily these people are experiencing their world and their landscape through their animals,” said Haruda. “So, if they fail to move their animals in the right way, or they fail to understand how the weather is going to be that year, they could all die because there was no safety net for them.” By measuring the bones of sheep found in the steppe from the Final Bronze Age, she was able to determine that these pastoralists did not migrate exte...
Post a Comment
Read more

#FacesofPhotonics: Optimax Director of Technology and Strategy, Jessica DeGroote Nelson

By
PITCH PERFECT: Optics expert Jessica DeGroote Nelson  SPIE Senior Member Jessica DeGroote Nelson works as the director of technology and strategy at Optimax Systems in Ontario, New York. She also teaches as an adjunct assistant professor at The Institute of Optics at the University of Rochester (UR), and is a Conference Chair for SPIE Optifab 2019.  Nelson also teaches  Optical Materials, Fabrication, and Testing for the Optical Engineer  at SPIE conferences. This course is geared toward optical engineers who are hoping to learn the basics about how optics are made, and ways in which to help reduce the cost of the optics they are designing. It is also offered online. "Optical tolerancing and the cost to fabricate an optic can be a point of tension or confusion between optical designers and optical fabricators," Nelson says. "I teach this course to help give optical designers who are new to the field a few tools in their toolbelt as they navigate toler...
Post a Comment
Read more