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Coracoid Process – How Does it Affect Vision

Coracoid process is a short hook-shaped structure behind the superior medial aspect of the clavicle (hence, coracoid, or ‘like a raven’s Beak). It extends into the anterior chest wall (the inferior chest wall) and articulates with the spine sculpture. It originates from a pair of paired projection alveoli that are responsible for providing the internal breathing cavity to the heart. It contains four bones: The parietal bone, the coracoid process, the spine sculpture, and the projection joints. 

The Function of Coracoid Process

The purpose of the coracoid process is to provide stability to the coracoid artery. This is to provide a continuous and strong supply of oxygenated blood to the heart and brain. This part of the coracoid is visible in the cornea and is not related to vision. The process is important in keeping the scapula well-balanced, allowing for the movement of the inferior vena cava and providing stable midface stability for the face and neck.

Anatomy of Coracoid Process

coracoid process
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The coracoid process and its structure are located behind the coracoacromial ligament on each side of the coracoid spine. It is an area where the shoulder blade meets the lateral sides of the clavicle. 

Location of Coracoid Process

The coracoid process is located in the upper part of the shoulder blade. This is the primary attachment site for the superior vena cava and the inferior vena cava. This area is relatively free from significant involvement and has a wide convex surface with minimal sulcation.

coracoid process
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The location and function of this capsule are important to the proper performance of the shoulder anatomy. The coracoid process and the attached inferior and superior vena cava provide a stable connection for the skin to form around the body. The arrangement of the inferior and superior vena cava ensures a superior positioning of the skin’s surface for proper venous return and an appropriate skin incision direction. This is why the configuration of the coracoid muscle and the formation of the skin’s surface in the coracoid process is very important to shoulder health.


coracoid process
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Lateral Phalangeal Contracture (LPC) and Phalangeal Breakage (PBP) are common injuries to the coracoid process. The anatomy of this area is complicated since it involves four different structures which are necessary for muscular contracture, relaxation, stretching, and lengthening of the muscle. The most common cause of injury to the coracoid process is through LPC or PBP. 

How Does Coracoid Process Affect the Vision

An additional type of Avulsion Fracture that can occur is coracoid ossification fracture. This fracture occurs when the coracoid muscle contractures, then reach out towards the medial part of the eye socket. This movement causes the ossified (crested) portion of the coracoid to slide towards the anterior chamber of your eye. If you have an injury complex, such as avascular necrosis of the ossified portion, you may also experience pain in your eyes (if you have an anterior chamber injury), with a loss of vision, nausea, and a decreased degree of eye movement. Your medical professional can determine whether or not you have a coracoid ossification fracture by undertaking an assessment.


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