A display device is provided. The display device comprises a display comprising a plurality of pixels arranged in a display plane. The display device is configured to determine a virtual plane at which a long-sighted user of the display device who is looking at the display sees sharp. Further, the display device is configured to determine a first contiguous group of pixels of the display which are located within a first optical path from a first virtual pixel of the virtual plane to an eye of the long-sighted user, and to determine a second contiguous group of pixels of the display which are located within a second optical path from a second virtual pixel of the virtual plane to the eye of the long-sighted user.