I'm surprised that anyone is suggesting that an immediate consultation is necessary.
First, diagnosing orbital compartment syndrome (Im just going to call it OCS) is the ER's responsibility, NOT the on call ophthalmologist. If OCS is suspected, it is negligent to wait for the diagnosis to be confirmed by the on call eye doctor. Those patients should be recognized and treated before even making it to the CT scan (ideally).
Secondly, look at the case scenario - NO CLINICAL SIGNS OF OCS. Size of the RBH, which fractures, motility, CVF? None of that is even relevant to diagnosing OCS anyway. Who is performing the exam? The ED physician. He/She is the one liable for performing a thorough screening exam.
Any other potentially vision threatening condition can be diagnosed by close outpatient follow up. Arguably outpatient follow up is superior for a better exam in a controlled setting with the tools that are available in the office as opposed to the emergency room.