] Six blind volunteers now have an electrode-studded sliver
] of silicone tacked to one of their retinas. A digital
] camera mounted to sunglasses feeds images wirelessly to
] this implant, whose 16 electrodes zap retinal nerves to
] produce impressions of light in the brain. Although the
] resolution is crude next to the 100-million-pixel
] resolution of a healthy eye, the volunteers can
] distinguish cup from plate, light from dark, and they can
] tell when someone strolls past on the sidewalk.

I'll probably need this sooner than I'd like.