<prompt> Traumatic eye with late presentation of hyperaemic sclera with unilateral proptosis is due to -Retrobulbar hematomaRetrobulbar cellulitisCarotico- cavernous fistulaPneumo- orbit  <response>: Retrobulbar hematoma usually presents with a history of trauma, painful exophthalmos proptosis, retriction of extraocular movement, diffuse subconjunctival hemorrhage, periorbital edema and ecchymosis.Retrorbital abscess develops as a complication of orbital cellulitis there is no history of symptoms of orbital cellulitis in this question.Carotico-covernous fistula typically presents, days or weeks after the trauma. There is characteristic pulsatile exophthalmos with severe and sudden cephalic orbital pain, a roaring sound in head synchronous with the pulse, decreased vision, diplopia and ophthalmoplegia.Sorry friends, I could not get the reference for pneumo-orbit. 