Myelinated Retinal Nerve Fibers, a Complicating Factor in Amblyopia Rehabilitation?

Myelinated Retinal Nerve Fibers (MRNFs) can be observed on fundus photography. This has the appearance of white striated patches with poorly defined borders caused by a developmental error leading to myelination of retinal ganglion cell fibers by ectopic oligodendrocytes. The prevalence of MRNFs is low, ranging from 0.34% [1] to 0.98% [2], and there is no variation according to the origin or sex of the patients. Apart from associated pathologies, this type of fiber remains stable over time [2]. It is considered as a rare and mostly benign congenital anomaly. The objective is to show that in young children, the presence of extensive myelin fibers should be monitored more regularly by ophthalmologists.