The aim of this study were two fold. First, the study investigated whether the reading speed and reading distance changed depending on which device was used. The other part of this study evaluated whether there was any correlation between the reading distance and the participants refractive errors. This was accomplished by measuring reading speed and reading distance during reading on different devices; smartphone, tablet and an A4-paper. The participants (n=26) first went through an eye examination and additional measurements to see if they met the criteria that was required for taking part in this study. After that the participants read six texts from the Swedish version of the standardized reading test IReST on three different devices; smartphone, tablet and paper. They read two texts per device where the first round tested the reading speed and the second round tested the reading distance. Later the reading distance for the different devices were compared with the participants refractive errors. There was a statistical significant difference for the reading distance between smartphone and tablet (p=0,026) and smartphone and paper (p=0,004). However there was no statistical significant difference in reading distance between tablet and paper (p=0,60). The study showed no statistical significant difference in reading speed between the different devices (p>0,05). A completed comparison between the reading distance of the different devices and the participants refractive error showed no statistical significant correlation (r<0,80). The study showed that there was an impact in reading distance due to which device that were used. There was a statistical significant difference in reading distance between smartphone and tablet and smartphone and paper. However, there was no difference in reading speed between the different devices. The correlation between the reading distance for the different devices and the participants refractive error was not statistically significant.