About The Medical Condition Retraction Syndromes, Ocular
Find the definition of the medical term Retraction Syndromes, Ocular. Retraction Syndromes, Ocular defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Retraction Syndromes, Ocular
Retraction Syndromes, Ocular Medical Condition |
---|
What's The Definition Of The Medical Condition Retraction Syndromes, Ocular?
A syndrome characterized by marked limitation of abduction of the eye, variable limitation of adduction and retraction of the globe, and narrowing of the palpebral fissure on attempted adduction. The condition is caused by aberrant innervation of the lateral rectus by fibers of the oculomotor nerve. There are three subtypes: type 1 (associated with loss of abduction), type 2 (associated with loss of adduction), and type 3 (loss of abduction and adduction). Two loci for Duane retraction syndrome have been located, one at chromosome 8q13 (DURS1) and another at chromosome 2q31(DURS2). It is usually caused by congenital hypoplasia of the abducens nerve or nucleus, but may rarely represent an acquired syndrome. (Adams et al., Principles of Neurology, 6th ed, p271; Miller et al., Clinical Neuro-Ophthalmology, 4th ed, p691)
|
More Medical Conditions
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Medical Conditions Definitions Of The Day
- Reticulosis, Histiocytic Medullary ‐ A rare, usually rapidly progressive disorder, characterized by…
- Nitroxidergic Neuron ‐ Nerve cells where transmission is mediated by…
- Pancreatic Diversion, Bilio ‐ A surgical procedure which diverts pancreatobiliary secretions…
- Islet Cell Tumor, Malignant ‐ A carcinoma of the islets of…
- Impression Technics, Dental ‐ Procedure of producing an imprint or negative likeness of the…
- Activities, Locomotor ‐ The physical activity of an organism as a behavioral…
- Benzilate, Quinuclidinyl ‐ A high-affinity muscarinic antagonist commonly used as a tool…
- Unwanted Pregnancies ‐ Pregnancy, usually accidental or unplanned, that is not desired…
- Japanese Quail ‐ A genus of birds (family Phasianidae) containing the common European…
- Rate, Fetal Heart ‐ The heart rate of the fetus. The normal range at term is between…