Abstract: A processing device allows processing standard or non-standard spectacle lens prescription documents drafted in a plurality of fashions and provided by eye care professionals, such as opticians, or by end consumers in one of a plurality of languages to determine the data related to the refractive values in a reliable, scalable, and automated fashion. Data related to refractive values is determined from the spectacle lens prescription document. A processing device for determining data related to the refractive values determine at least one pattern containing the data related to the refractive values from an electronic representation of the at least one spectacle lens prescription document, and determines text containing the data related to the refractive values from the electronic representation of the at least one spectacle lens prescription document.