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Progression of myelinated retinal nerve fibers
B Rosen1, C Barry, I J Constable
1Centre for Ophthalmology and Visual Science, Lions Eye Institute, Perth, Western Australia, Australia. bradrosen@hotmail.com
Purpose:
To present a case demonstrating progression of retinal nerve fiber myelin and to suggest that myelinated retinal nerve fibers be considered among the peripapillary choristomas.
Method:
Case report. A 46-year-old woman demonstrated progression of myelinated retinal nerve fibers and associated retinal vascular anomalies.
Results:
Myelinated retinal nerve fibers can be progressive. We confirm earlier reports of vascular anomalies associated with retinal nerve fiber myelin and show that they can also be progressive.
Conclusions:
The rarely progressive nature of myelinated retinal nerve fibers and the histopathologic studies published to date suggest that myelinated retinal nerve fibers represent a striking ophthalmoscopic feature resulting from ectopic oligodendrocytes; thus, the entity may be described as an oligodendrocytic choristoma.