Traumatic eye with late presentation of hyperaemic sclera with unilateral proptosis is due to :

B i.e. Retrobulbar cellulitis Retrobulbar cellulitis is the only option which can present late after trauma to eyeQ. Pneumo-orbit, Retrobulbar hematoma & carotico-cavernous fistula - all present early after trauma. U/L proptosis can be present in all but hyperemic sclera also ours diagnosis of retrobulbar cellulites or CCF.