Metamorphopsia is a specific disorder of visual perception. This is due to the central nervous system, which is involved in the transmission, modality and analysis of visual stimuli. The objects seen are perceived as changed, but in such a way that the object is still recognizable, although it seems to have properties different from the real ones. Metamorphopsia means that perceived objects may be in a different place than they really are. The world can be brighter, more expressive - an abstract painting with unique features is created. Deformations can change the size of viewed objects, distances and proportions. Multiplications of elements may appear. It is also characteristic to shimmer or glow of the visual image, color changes of objects or monochrome vision. Visual metamorphopsia also includes disturbances in the emotional perception of perceived objects.