Duane syndrome
Duane Syndrome
Duane Syndrome (pronounced: /dʊˈeɪn/), also known as Duane Retraction Syndrome (DRS), is a rare, congenital disorder of eye movement. The condition was first described by Alexander Duane, an American ophthalmologist, in 1905.
Etymology
The term "Duane Syndrome" is named after Alexander Duane, who first described the condition in detail. The word "syndrome" comes from the Greek "σύνδρομον" (sýndromon), meaning "concurrence of symptoms," or "running together."
Definition
Duane Syndrome is a congenital and non-progressive strabismus syndrome. It is characterized by the inability to move the eye outward (abduction) and/or inward (adduction), and the retraction of the eyeball into the eye socket when attempting to move the eye inward or outward. This retraction often leads to the narrowing of the eye opening (palpebral fissure).
Symptoms
The most common symptoms of Duane Syndrome include:
- Limited horizontal eye movement
- Eyeball retraction
- Narrowing of the eye opening
- Misalignment of the eyes (strabismus)
- Amblyopia, or lazy eye
Causes
Duane Syndrome is a congenital condition, meaning it is present at birth. It is caused by the improper development of the abducens nerve (sixth cranial nerve), which controls the lateral rectus muscle responsible for outward eye movement.
Treatment
Treatment for Duane Syndrome is typically non-surgical and focuses on managing symptoms. This may include the use of corrective glasses or contact lenses, vision therapy, or in some cases, surgery to improve eye alignment and movement.
Related Terms
External links
- Medical encyclopedia article on Duane syndrome
- Wikipedia's article - Duane syndrome
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