<prompt> All the following are true about Papilledema except-It is a purely non-inflammatory phenomenonTransient loss of vision occursFirst sign is blurring of the nasal side of the optic discSudden loss of vision with painful eye movement  <response>: There is gradual painless loss of visionPapilloedema is non- inflammatory edema of optic disc. Visual symptoms only in 25 of patients start as transient obscurations of vision.Earliest ophthalmoscopic sign is blurring of the margins of the optic disc, which starts at the upper and lower nasal margins and entends to nasal side. 