http://blogs.discovermagazine.com/notrocketscience/2012/03/12/will-we-ever-restore-sight-to-the-blind/ Mon, 26 Nov 2012 12:00:51 +0000 hourly 1 http://wordpress.org/?v=3.4.2 http://blogs.discovermagazine.com/notrocketscience/2012/03/12/will-we-ever-restore-sight-to-the-blind/#comment-14583 Brian Tue, 13 Mar 2012 15:41:50 +0000 http://blogs.discovermagazine.com/notrocketscience/?p=6541#comment-14583 It is probably not fair to call a photodiode an electrode. Saying one has 1500 and the other has 60 implies that the resolution is 25 x greater for the sub-retinal implant, which is not the case. Argus II patients seem to do as well or better (see recent Ophthalmology paper) - and over the long term, not just a few months. Note also that color vision has been demonstrated with Argus II (ARVO 2011, Euretina 2011, ARVO 2012). It is a distinct benefit of having the camera and the processing outside of the eye. It is probably not fair to call a photodiode an electrode. Saying one has 1500 and the other has 60 implies that the resolution is 25 x greater for the sub-retinal implant, which is not the case. Argus II patients seem to do as well or better (see recent Ophthalmology paper) – and over the long term, not just a few months. Note also that color vision has been demonstrated with Argus II (ARVO 2011, Euretina 2011, ARVO 2012). It is a distinct benefit of having the camera and the processing outside of the eye.

]]> http://blogs.discovermagazine.com/notrocketscience/2012/03/12/will-we-ever-restore-sight-to-the-blind/#comment-14582 Andrew M Tue, 13 Mar 2012 01:07:04 +0000 http://blogs.discovermagazine.com/notrocketscience/?p=6541#comment-14582 This is a well-researched article on the leading visual prosthesis projects. However, the Argus II has 60 electrodes, not 16 as mentioned. This is a well-researched article on the leading visual prosthesis projects. However, the Argus II has 60 electrodes, not 16 as mentioned.

]]>