Extra-papillary Myelin Fiber of Incidental Finding: A Case Report

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Abstract

We report an observation of an uncommon form of extra-papillary myelin fibers of fortuitous discovery in a patient, 55 years old, who consulted for a change of correction.


The clinical aspect of the fundus led to the diagnosis of retinal myelin fibers in front of a whitish placard with a finely striated scalloped edge, partially masking the vessels and located at the level of the inferior temporal arch.


These fibers, contiguous to the papilla or distant from it, have an incidence varying from 0.57% to 0.98% according to studies and their pathogenesis is still uncertain. This congenital anomaly of the retinal fibers of clinical diagnosis is often asymptomatic, but can however be associated with other ocular disorders.


  1. Robert M, Lebranchu P. Pathologie développementale du nerf optique. In : Denis D, Bui Quoc E, Aziz-Alessi A. Ophtalmologie pédiatrique. Rapport de la SFO. Issy-les-Moulineaux : Elsevier Masson; 2017: 533-544. French.
     Google Scholar 
  2. Tarabishy AB, Alexandrou TJ, Traboulsi EI. Syndrome of myelinated retinal nerve fibers, myopia, and amblyopia: a review. Surv Ophthalmol. 2007; 52: 588-96.
    DOI
     Google Scholar 
  3. Velasque L, Montemousque B. Retinal myelin fibers. Review of the literature about a case. J Fr Ophthalmol. 2000; 23: 892-896.
     Google Scholar 
  4. Straatsma BR, Foos RY, Heckenlively JR, Taylor GN. Myelinated retinal nerve fibers. Am J Ophtalmol. 1981; 91: 25-38.
    DOI
     Google Scholar 
  5. Ali B, Logani S, Kozlov K, Bateman B. Progression of retinal nerve fiber myelination in childhood. Am J Ophthalmol. 1994; 118: 515- 517.
    DOI
     Google Scholar 
  6. Berliner ML. Cytologic studies on the retina: normal coexistence of oligodendroglia and myelinated nerve fibers. Arch Ophthalmol. 1931; 6: 740.
    DOI
     Google Scholar 
  7. French Constant C, Miller RH, Burne JF, Raff MC. Evidence that migratory oligodendrocyte type 2 astrocyte (0-2a) progenitor cells are kept out of the rat retina by a barrier at the eye end of the optic nerve. J Neurocytol. 1988; 17; 13.
    DOI
     Google Scholar 
  8. Straatsma BR, Foos RY, Heckenlively JR, Taylor GN. Myelinated retinal nerve fibers: clinico-pathologic study and clinical correlations. Excerpta Med. 1978; 32(442): 36.
     Google Scholar 
  9. Rosen B, Barry C, Constable I. Progression of myelinated retinal nerve fibers. Am J Ophthalmol. 1999; 127: 471-473.
    DOI
     Google Scholar 
  10. Teich SA. Disappearance of myelinated retinal nerve fibers after a branch retinal artery occlusion. Am J Ophthalmol. 1987; 103: 835- 837.
    DOI
     Google Scholar 
  11. Silvestri G, Sehmi K, Hamilton P. Retinal vascular abnormalities a rare complication of myelinated nerve fibers? Retina. 1996; 16: 214- 218.
    DOI
     Google Scholar 
  12. Leys A, Leys M, Hooymans J, Craandijk A, De Laey JJ. Myelinated nerve fibers and retinal vascular abnormalities. Retina, 1996; 16(2): 89-96.
    DOI
     Google Scholar 
  13. Bynke H, Bynke G. Atrophy of myelinated retinal nerve fibers following pituitary surgery. Neuro- Ophthalmol. 1989; 9(3): 179-185.
    DOI
     Google Scholar 
  14. Gupta A, Khandalavala B, Bansal RK, Jain I, Grewal S. Atrophy of myelinated nerve fibers in pituitary adenoma. J Clin Neuro Opht. 1990; 10(2): 100-102.
     Google Scholar 
  15. Kodama T, Hayasaka S , Setogawa T. Myelinated retinal nerve fibers: prevalence, location and effect on visual acuity. Ophtalmologica, 1990; 200: 77-83.
    DOI
     Google Scholar 
  16. Karadimas P, Kapetanios A , Panayotidhou E , Bouzas EA . Epiretinal Membrane Occurring with Myelinated Retinal Nerve Fibers and Vascular Abnormalities. Retina. 2003; 23: 880-881.
    DOI
     Google Scholar 

How to Cite

Haddougui, S., Bouchaar, M. ., Bajjouk, S., Mouzari, Y., Reda, K., & Oubaaz, A. (2023). Extra-papillary Myelin Fiber of Incidental Finding: A Case Report. European Journal of Medical and Health Sciences, 5(1), 1–2. https://doi.org/10.24018/ejmed.2023.5.1.1579

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