I found only these: "A Spherical Camera Sensor
A stretchable circuit allows researchers to make simple, high-quality camera sensors." http://www.technologyreview.com/news/410562/a-spherical-camera-sensor/
"The Boston Retinal Implant Project": http://www.bostonretinalimplant.org/
"Stretchable silicon nanoribbon electronics for skin prosthesis" Jaemin Kim et al.
Nature Communications 5, Article number: 5747 doi:10.1038/ncomms6747
2014 http://www.nature.com/ncomms/2014/141209/ncomms6747/full/ncomms6747.html