Certified Ophthalmic Medical Technologist (COMT) Practice Exam

What imaging procedure is commonly used to assess potential orbital fractures?

1. Computed Tomography (CT)

2. X-ray

3. Magnetic Resonance Imaging (MRI)

4. Ultrasound

The correct answer is: Magnetic Resonance Imaging (MRI)

The most accurate and commonly used imaging procedure for assessing potential orbital fractures is Computed Tomography (CT) scans. CT is particularly valuable in this context because it provides detailed cross-sectional images of the bone structures within the orbit, enabling the identification of subtle fractures that may not be visible on other imaging modalities. CT scans are preferred in trauma cases where there's a suspicion of orbital fractures due to their speed, availability, and higher sensitivity for bony injuries. They allow for rapid assessment of the extent of injury and any associated complications, such as involvement of the optic nerve or surrounding soft tissue, making it an essential tool in emergency settings. While X-rays can be used in the initial evaluation of facial trauma, they do not provide the level of detail needed to accurately diagnose orbital fractures. Magnetic Resonance Imaging (MRI) is excellent for evaluating soft tissues and is beneficial in assessing ocular structures or potential injuries to the optic nerve, but it is not the first-line imaging for bony orbital fractures. Ultrasound can be applied in some pediatric cases, but it is not routinely used for evaluating adult orbital fractures due to its limitations in visualizing bony anatomy. In summary, CT scans offer the most comprehensive evaluation of potential orbital fractures, making it the go-to imaging