<prompt> Papilloedema is characterised by all of the following EXCEPT-Loss of retinal venous pulsationsTransient obscurations of visionSudden painless loss of visionDisc oedema  <response>: Vision loss occurs in long standing papilloedema not in acute pappiloedema, and that occurs in less than 25 of patients.Post neuritic atrophy also occurs in long standing papilloedema and not acute papilloedema. 