How come my husband can only wink with one eye? asks a reader. Blinking bathes our eyes in fluid, washing away dust and keeping them moist. Winking is social, underlining shared opinions, attraction, ...
Researchers from the Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland have developed contact lenses that have tiny telescopic lenses built in to boost vision. Controlled by smart glasses ...