Agence France-Presse – Swiss researchers are developing contact lenses that contain tiny telescopes to boost vision and zoom in and out with the wink of an eye. latest advances in vision aids – some of which could potentially help the 285 million people worldwide with some form of vision impairment – were discussed at the American Association for the Advancement of Science annual meeting in California. The contact contains an extremely thin, reflective telescope, which is activated by winks and embedded inside a 1.55 millimeter-thick lens. First released in 2013 and fine-tuned since then, the prototype was unveiled by Eric Tremblay from the Ecole Polytechnique Federale de Lausanne in Switzerland.The lenses come with smart glasses that respond to the wearer’s winks – but not blinks – so that the user can switch almost effortlessly from normal to magnified vision and back. The wearer blinks with the right eye to activate the telescope, and with the left eye to deactivate it.