docinthemachine writes: "A series of blindness reversing operations has just been completed in cats. Apparently, some felines get a version of retinitis pigmentosa and go blind just like their human counterparts. Several have been fortunate (?) enough to play guinea pig and receive a kitty version of an experimental human retinal implant. The 2-millimeter-wide chips are surgically implanted in the back of eye. Each chip's surface is covered with 5,000 microphotodiodes that react to light, sending electric signals along the eye's optic nerve to the brain. The post finishes up with a discussion of what should we do when the artifical limbs and retinas outperform the OEM body versions we were born with. read the full article at : http://docinthemachine.com/2007/01/22/cateye/"