Nature Photonics 6, 391–397 (2012); published online 13 May 2012; corrected after print 16 November 2012.

A relevant publication on the topic of the flexible substrate concept applied to a retinal implant should have been cited in this Article. The publication is by Dinyari, R., Loudin, J. D., Huie, P., Palanker, D. & Peumans, P. and is entitled “A Curvable silicon retinal implant” published in International Electron Devices Meeting (IEDM) (IEEE International, 2009). It is now cited as reference 39 in the Article. Additionally, Fig. S4a in the Supplementary Information of the Article is reproduced from the same new reference, with permission from IEEE. These revisions have been made in HTML and PDF versions of the Article, and PDF version of the Supplementary Information.