Satya Srinivas V1, A. P. R Naidu2, Murali Krishna V3, Vijaya L. Alle4, Srijana L5
Neuromyelitis optica (NMO) or devics disease was considered as a variant of Multiple sclerosis, with recent advances in investigations and with better understanding of etiopathogenesis, NMO is a distinct immune mediated, largely relapsing, inflammatory, demyelinating disease of central nervous system. NMO most commonly involves the optic nerves and spinal cord. Relapsing and monophasic are two variants of NMO, as relapsing NMO is a rapidly disabling disease, prompt diagnosis of the type from the monophasic, helps in the management as well as decreasing the motor and visual morbidity.