In the context of ophthalmology, a "blowout fracture" of the orbit refers to a fracture that typically occurs due to a blunt trauma to the eye. This impact causes the orbital bones to crack and is most commonly associated with the floor of the orbit. The orbital floor is composed of thin bone and is, therefore, the most vulnerable to fracture during blunt trauma.
Here are the key points about a blowout fracture:
Anatomy Involved: The orbit consists of several walls, including the floor, medial wall, lateral wall, and roof.
Commonly Affected Area: The floor of the orbit is the most frequently affected area in a blowout fracture, primarily due to its thin structure.
Symptoms: Symptoms of an orbital floor fracture may include double vision (diplopia), enophthalmos (sunken eye appearance), and decreased eye movement, particularly when looking upwards.
Diagnosis: A CT scan is often used to diagnose a blowout fracture.
Treatment: Depending on the severity, treatment may include observation, surgery to repair the fracture, or measures to alleviate symptoms such as double vision.