lenses ensure exceptionally true-colour, high-luminosity and high-contrast image reproduction. At the same time, colour fringing at the edge of images is reduced to a minimum.Light transmission of over 90%

helpful? As we age, the light requirement of our eyes increases. For example, in order to experience the same impression of brightness, a person who is 60 years of age requires around 15 times as much light as

five times the thickness of the line, and in the case of the Landolt ring, the gap width is also the same as the thickness of the line. During the sight test, if the person who is being tested can recognise

your optician for help. Can I charge the battery handle of the Vario Plus system and use it at the same time? No. For technical reasons, it cannot be used during the 4-hour charging period. What is a dioptre

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