Olaf Marshall, Manager International PR, Carl Zeiss Vision International GmbH September 2016
One of the most surprising properties of light is its dual nature: light possesses the properties of classic waves as well as classic particles. The lesson on the wave-particle duality of light in physics class might have been a watershed moment for generations of students: it was at this point that they decided to not delve any deeper into the phenomena of wave and quantum physics. But we do not need to dwell on the field of physics to observe another instance of this dual nature. Instead, we need only to look at our own "physical" (and emotional) behavior when purchasing a pair of glasses.