Did you know that experts refer to “normal” glasses as distance glasses? Together with reading glasses, they are one of the most common ways of improving vision. But what makes these single vision glasses so special – and what makes a good pair of glasses so good? It’s not just about the perfect lenses – the frame and precise adaptation to the wearer’s face play a key role when it comes to delivering the best possible vision. After all, glasses will help you see better depending on the precision with which the lenses and frames are adapted for the wearer. But what does it all come down to? Read on to find out everything you need to know about reading glasses, distance glasses and lenses that started out as “reading stones,” coloured, self-tinting lenses, selecting the right frame and how these days it’s easy to produce thin, lightweight ZEISS lenses even for high-power prescriptions.