Neurodevelopmental Disorder with Spastic Diplegia and Visual Defects, also known as nedsdv, is related to severe intellectual disability-progressive spastic diplegia syndrome and autosomal dominant intellectual developmental disorder 19. An important gene associated with Neurodevelopmental Disorder with Spastic Diplegia and Visual Defects is CTNNB1 (Catenin Beta 1). Affiliated tissues include skin and brain, and related phenotypes are intellectual disability and global developmental delay