Proptosis
Proptosis (pronounced: prohp-TOH-sis) is a medical term that refers to the abnormal protrusion or displacement of an organ or part of the body, especially the eyeball. The term is derived from the Greek word "proptosis" which means "a falling forward".
Etymology
The term "Proptosis" is derived from the Greek word "proptoō" which means "to fall forward". It is composed of two parts: "pro-" meaning "forward" and "-ptosis" meaning "falling".
Definition
Proptosis is a condition where the eyeball is abnormally protruded from the eye socket. This can be due to various causes such as thyroid eye disease, orbital cellulitis, tumors, or trauma. It is often associated with Graves' disease, an autoimmune disorder that affects the thyroid.
Symptoms
Symptoms of proptosis can include visible bulging of the eyes, redness and swelling, pain, vision changes, and difficulty closing the eyes.
Diagnosis
Diagnosis of proptosis is typically made through a physical examination and imaging tests such as CT scan or MRI. The degree of proptosis can be measured using a device called an exophthalmometer.
Treatment
Treatment for proptosis depends on the underlying cause. It may include medications, surgery, or radiation therapy. In some cases, treatment may not be necessary if the proptosis is not causing any symptoms or problems.
Related Terms
- Exophthalmos: Another term for proptosis, often used when the condition is caused by Graves' disease.
- Enophthalmos: The opposite of proptosis, this term refers to the posterior displacement of the eyeball within the orbit.
- Orbit: The bony cavity in the skull that contains the eyeball.
- Orbital decompression surgery: A surgical procedure used to treat severe cases of proptosis.
External links
- Medical encyclopedia article on Proptosis
- Wikipedia's article - Proptosis
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