Acquired medullated nerve fibres.
Myelination of nerve fibres normally stops at the lamina cribrosa. When it does proceed beyond the lamina cribrosa, it is believed to do so shortly after birth. A patient is recorded in whom medullated nerve fibres developed in the retina during adult life.
D000328:Adult; D006801:Humans; D008297:Male; D009413:Nerve Fibers, Myelinated / Q000473:pathology; D012160:Retina / Q000293:injuries* / Q000294:innervation