This tool enables you to measure your pupillary distance with the help of your webcam and a bank card (for size reference). Please position yourself with 80cm distance in front of your webcam and position your head according to the exemplary picture. The tool takes three pictures which we will use to measure your pupillary distance. Sidenote: From +/- 4 diopters we recommend you to have your pupillary distance and height of view measured at one of our stores. All the pictures will be deleted after measuring.