optic atrophy
Diagnosis
visual dysfunction (vision and/or visual field loss)
Based on the findings of disc pallor associated changes in the integrity of the retinal nerve fiber layer and retinal vessels
Bilateral unexplained visual loss
Thinning of retinal nerve fiber
Molecular diagnosis by identification of a mutation in the OPA1 gene or in the OPA3 gene.
Causes
Glaucoma
Stroke of the optic nerve
Tumor
hereditary condition
Symptoms
Blurred vision
Abnormal side vision
Abnormal color vision
Histopathologic changes in optic atrophy
Widening of the pial septa
Shrinkage or loss of both myelin and axis cylinders
Gliosis
Widening of the subarachnoid space with redundant dura
MRN: 1000000002898
-38 Years old male African American
Symptoms: Blurred vision, flashes of light, floaters
BCVA OU 20/200
Epidemiology
-Prevalence of blindness attributable to optic atrophy was 0.8%.
Race:Optic atrophy is more prevalent in African Americans (0.3%) than in whites (0.05%).
Age: Optic atrophy is seen in any age group.
Reference:
Lenaers et al.: Dominant optic atrophy. Orphanet Journal of Rare Diseases 2012 7:46.
Osaguona VB, Okeigbemen VW. Nonglaucomatous optic atrophy in Benin City. Ann Afr Med 2015;14:109-13.
Aijaz S, Erskine L, Jeffery G, Bhattacharya SS & Votruba M (2004): Developmental expression pro- file of the optic atrophy gene product: OPA1 is not localized exclusively in the mammalian retinal ganglion cell layer. Invest Ophthalmol Vis Sci 45: 1667–1673.