A Variety of Anatomical and Clinical Manifestations of Myelinated Retinal Nerve Fibers
Journal Title: International Journal of Pharmaceutical Science Invention - Year 2017, Vol 6, Issue 5
Abstract
Introduction: Myelinated Retinal Nerve Fibers (MRNF) represent a developmental anomaly that occurs in about 1% of the population. They appear as different in size, well demarcated white striated lesions along the retinal nerve fibers mainly in contiguity with the optic nerve head. The MRNF may be an isolated asymptomatic finding or associated with other ocular or systemic abnormalities, causing mild to significant visual loss. Purpose: To present a variety of anatomical and clinical manifestations of MRNF. Patients and methods: Between 2011 and 2016 nine patients (six children and three adults) with MRNF were admitted to the Eye clinic of the University Alexandrovska hospital in Sofia, Bulgaria. Full orthoptic and ophthalmologic examination was performed. Results: Eight patients had unilateral MRNF, seven with the left eye and one - with the right eye involved. Two of them had the triad of MRNF, axial myopia and amblyopia (Straatsma syndrome). One patient had bilateral MRNF and hyperopia („reverse” Straatsma syndrome). Two adult patients were asymptomatic. The rest had a substantial visual impairment because of anisometropia, strabismus or massive myelinated lesions. Conclusion: There is a great variety of anatomical and clinical manifestations of MRNF and their effect on the visual function depends on both organic and amblyogenic factors.
Authors and Affiliations
G. Dimitrova, B. Mihaylova, V. Chernodrinska
Keywords
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