UW QID# 11742 had the same question. Fracture of the orbital floor causes displacement of the orbital contents through the floor and can cause enophthalmos and entrapment of the IR muscle (diplopia when looking up). Also, damage to the infraorbital nerve (a branch of V2), which exits through the infraorbital foramen, will cause numbness of the upper cheek, upper lip, and upper gingiva.
orbital floor fracture lead to entrapment of IRM leading to diplopia,we can see air in the orbit plus displacement of eye tissue and the muscle in maxillary sinus .
tricky image but question is asking more specifically about his visual complaints which is just "double vision" so IR entrapment is the best answer
This patient has a orbital blowout fracture. see the tear drop sign.
submitted by โthomasalterman(181)
Patient has a fracture to the inferior orbit. This can dmg V2 or entrap the IR muscle. Only IR entrapment would impair vision.