<prompt> Enophthalmos caused by fracture of -Floor of orbitMedial wall of orbitLateral wall of orbitRoof of orbit  <response>: It is seen in Orbital blowout fractures where orbital floor is fractured. 3 factors responsible for enopthalmos : Escape of Orbital fat into maxillary sinus. Backward traction on the globe by entrapped inferior rectus muscle. Enlargement of orbital cavity from displacement of fragments. Ref: AK Khurana 6thE pg423 