When the gift of returned sight becomes a disability

On the face of it, it’s the best news of the year, so far. Better, even, than the tax cuts every political party is promising us, right now. A cure for blindness. Not metaphorical blindness. Real blindness.

Blindness such as faces many sufferers of retinitis pigmentosa and another of the most common causes of vision loss, macular degeneration.

At the University of Southern California, they’ve invented a bionic eye.