<prompt> Which of the following is not a feature of chronic progressive external ophthalmoplegiaStas with bilateral ptosisMay be associated with hea block.Finally ocular motility palsySignificant diplopia  <response>: Chronic Progressive External Ophthalmoplegia No diplopia since it is bilaterally symmetrical No neurological involvement. Progressive generalized muscular disorder. Stas with bilateral ptosis, is symmetrical. Finally ocular motility palsy followed by paralysis occurs. 