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Ocular findings in conjoined (Siamese) twins.
A M Mansour1, N Mansour, H S Rosenberg
1Department of Ophthalmology, University of Texas Medical Branch, Galveston 77550.
Journal of Pediatric Ophthalmology and Strabismus
|September 1, 1991
Summary
Conjoined twins, a rare congenital anomaly, exhibit various ocular abnormalities. These findings suggest developmental or fusion-related factors contribute to these complex conditions.
Area of Science:
- Ophthalmology
- Teratology
- Developmental Biology
Background:
- Conjoined twinning is a rare congenital anomaly with significant implications for patient health.
- Understanding the spectrum of associated anomalies is crucial for diagnosis and management.
Observation:
- This study reviews ocular findings in six sets of conjoined twins.
- Additional ocular abnormalities from existing literature are also considered.
Findings:
- Common ocular findings include abnormal optic nerve decussation, pseudosynophthalmos, microphthalmia, abnormal eyelids, orbital and occipital encephalocele, and eyelid coloboma.
- These anomalies are hypothesized to result from either deformations due to appositional fusion or malformations from intrinsic developmental issues.
Implications:
- The findings highlight the complex interplay of factors influencing ocular development in conjoined twins.
- Further research into the specific etiological mechanisms is warranted for improved understanding and potential interventions.