Optical coherence tomography characteristics in a representative case of persistent myelination of the retina (lower rim of right eye). Myelinated retinal nerve fibers starting from the lower papillary rim and surrounding retinal vessels. The OCT reveals a thickened retina (518 µm). The myelinated nerve fibers show a high reflectivity similar to the regular retinal axon layer. Only the superficial part of the persistent myelination scattered back the laser light.