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Updated: Jan 21, 2026

A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
Published on: February 11, 2014
A 36-year-old Man with Limb Weakness and Dimness of Vision (NMO)
U K Sarker1, N Roy, M Bhattacharjee
1Dr Uttam Kumar Sarker, Assistant Professor, Department of Neurology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
Abstract:
Neuromyelitis Optica (NMO) previously known as Devic disease is inflammatory disorder of central nervous system characterized by severe immune mediated demyelination and axonal damage predominating targeting optic nerves and spinal cord leading to blindness and paralysis. The spectrum of the disease has expanded based on the specificity of the autoimmune response to the aquaporin-4 (AQP-4) water channel expressed on the end feet of astrocytes in the central nervous system. The coordinated immunological attack against aquaporin-4 is mediated by B & T cells, innate cells including neutrophils and eosinophils and complement system as well as pathogenic antibodies.
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