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Congenital cranial dysinnervation disorders: a concept in evolution.
Thomas M Bosley1, Khaled K Abu-Amero, Darren T Oystreck
1Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia. tmbosley@gmail.com
Current Opinion in Ophthalmology
|July 23, 2013
Summary
Congenital cranial dysinnervation disorders (CCDDs) are reviewed, highlighting new genetic and phenotypic findings for conditions like Duane and Moebius syndromes. Understanding genotype-phenotype correlations is advancing, improving CCDD classification.
Area of Science:
- Neuroscience
- Genetics
- Ophthalmology
Background:
- Congenital cranial dysinnervation disorders (CCDDs) represent a group of neurodevelopmental conditions affecting ocular motility.
- These disorders are typically neurogenic, originating from disruptions in cranial nerve development.
Purpose of the Study:
- To review current congenital and genetic diagnoses within the scope of CCDDs.
- To synthesize recent advancements in the understanding of CCDD etiology and clinical presentation.
Main Methods:
- Literature review of recent scientific publications on CCDDs.
- Analysis of genotypic and phenotypic descriptions for specific CCDDs, including Duane retraction syndrome and Moebius syndrome.
Main Results:
- Identification of novel genes associated with CCDDs and their corresponding phenotypes.
- Enhanced understanding of the neurodevelopmental and clinical impacts of various gene mutations.
- Recognition that genotype may not always perfectly predict phenotype, and vice versa, in certain CCDDs.
Conclusions:
- The CCDD framework has underscored the neurogenic basis of congenital ocular motility disturbances.
- Recent research has rapidly advanced the classification and understanding of CCDDs, with ongoing efforts to refine genotype-phenotype correlations.
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