Does centro nuclear myopothy get worse and can this condition ever improve or does it worsen over time?

Myopathy: Centro nuclear myopathy appears to be a progressive degenerative disease with no known cure.

Centronuclear myopat: Muscle weakness progressively worsens, and some people with this condition require wheelchair assistance in mid- to late adulthood. People with this condition may have weakness in the muscles that control eye movement (ophthalmoplegia) and droopy eyelids (ptosis). Rarely, affected individuals have disturbances in nerve function (neuropathy) or intellectual disability.