Joe Ayling: Contact lens cameras - a step too far?

Sony has excited the technology world this week by revealing details of contact lenses capable of recording our every movement.

Their possible uses mirror those flouted for Google Glass a few years ago – think live sport, interactive learning, news reports.

However, the main difference here is the wearer has no extra ‘baggage’. Google Glass was often deemed a slightly cumbersome add-on for everyday spectacle wearers – but at least you knew who was wearing them.

In contrast, contact lenses with cameras would in theory require zero effort to use – recording at the blink of an eye, but this invisibility presents issues of its own and not least privacy. Indeed, the prospect of hidden cameras might hinder journalists – already carrying around a degree of suspicion – in particular.