Related Experiment Videos
The extra digit. A pointer to the eye?
Transactions of the Ophthalmological Societies of the United Kingdom
|January 1, 1981
Summary
Polydactyly (extra digits) can co-occur with eye abnormalities in several genetic syndromes beyond Laurence-Moon-Biedl syndrome. This study explores these associations, including retinal dystrophy in rare genetic conditions.
Area of Science:
- Ophthalmology
- Medical Genetics
- Clinical Dysmorphology
Background:
- The Laurence-Moon-Biedl syndrome is a known cause of polydactyly and retinal dystrophy.
- Several other genetic syndromes involve polydactyly and ocular malformations, including colobomata and microphthalmos.
Observation:
- Syndromes with polydactyly and ocular abnormalities may present with ptosis, hypertelorism, and lateral canthal displacement.
- Retinal dystrophy is observed in Trisomy 13, Bloom syndrome, asphyxiating thoracic dystrophy (Jeune syndrome), and Ellis-van Creveld syndrome.
Findings:
- This study details a case of Ellis-van Creveld syndrome with retinal dystrophy.
- A case with a chromosomal defect (chromosome 2 addition), polydactyly, and retinal dystrophy is also presented.
Implications:
- Recognizing these diverse syndromes is crucial for accurate diagnosis and management of patients with polydactyly and ocular defects.
- Further research into the genetic and molecular underpinnings of these syndromes can improve patient outcomes.