## **Core Concept**
The clinical presentation of binocular diplopia (double vision) and restricted eye movements following facial trauma suggests a possible extraocular muscle or orbital injury. The immediate goal is to assess and manage any potential complications such as orbital compartment syndrome, which can lead to vision loss.

## **Why the Correct Answer is Right**
The correct approach involves **CT imaging** of the orbits to rule out any orbital or ocular injuries, including fractures or entrapment of extraocular muscles, which could explain the restricted eye movements and diplopia. This is crucial because some injuries, like orbital compartment syndrome, require urgent intervention to prevent permanent vision loss.

## **Why Each Wrong Option is Incorrect**
- **Option A:** While **antibiotic prophylaxis** might be considered to prevent infection, especially if there's an open wound, it does not address the immediate concern of diplopia and restricted eye movements.
- **Option B:** **MRI** could provide detailed images of soft tissue injuries but is not typically the immediate next step in acute trauma settings where bony injuries or acute hemorrhage need to be quickly assessed.
- **Option C:** **Application of ice** might help reduce swelling but does not address the need to evaluate for serious complications like orbital compartment syndrome or muscle entrapment.

## **Clinical Pearl / High-Yield Fact**
In cases of facial trauma with suspected orbital injury, a key concern is **orbital compartment syndrome**, a medical emergency. A high index of suspicion and prompt imaging (typically with CT) are critical. Remember, visual loss can be a complication, making immediate ophthalmological assessment crucial.

## **Correct Answer:** . CT orbit.