Kategóriák: Minden - symptoms - epidemiology - vision - causes

a Jenny Kim 9 éve

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optic atrophy

Optic atrophy is a condition characterized by the degeneration of the optic nerve, leading to significant visual impairment. Symptoms often include blurred vision, abnormal color vision, and abnormal side vision.

optic atrophy

optic atrophy

Reference:

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.
Osaguona VB, Okeigbemen VW. Nonglaucomatous optic atrophy in Benin City. Ann Afr Med 2015;14:109-13.
Lenaers et al.: Dominant optic atrophy. Orphanet Journal of Rare Diseases 2012 7:46.

Epidemiology

Age: Optic atrophy is seen in any age group.
Race:Optic atrophy is more prevalent in African Americans (0.3%) than in whites (0.05%).
-Prevalence of blindness attributable to optic atrophy was 0.8%.

MRN: 1000000002898

BCVA  OU 20/200
Symptoms: Blurred vision, flashes of light, floaters
-38 Years old male African American

Histopathologic changes in optic atrophy

Widening of the subarachnoid space with redundant dura
Gliosis
Shrinkage or loss of both myelin and axis cylinders
Widening of the pial septa

Symptoms

Abnormal color vision
Abnormal side vision
Blurred vision

Causes

hereditary condition
Tumor
Stroke of the optic nerve
Glaucoma

Diagnosis

Molecular diagnosis by identification of a mutation in the OPA1 gene or in the OPA3 gene.
Thinning of retinal nerve fiber
Bilateral unexplained visual loss
Based on the findings of disc pallor associated changes in the integrity of the retinal nerve fiber layer and retinal vessels
visual dysfunction (vision and/or visual field loss)