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Corneal rupture in a child with Down syndrome and hyperthyroidism
Sasha Howard1, Joseph Raine, Mehul Dattani
1Royal London Hospital, Royal London Hospital, London, E1 1BB, UK.
Insights
This report details a rare pediatric case of Down syndrome (trisomy 21) and hyperthyroidism that led to severe corneal hydrops and perforation due to keratoconus. This highlights a unique combination of conditions in a young patient.
Area of Science:
- Ophthalmology
- Genetics
- Endocrinology
Background:
- Trisomy 21 is associated with an increased risk of keratoconus and thyroid disease.
- Hyperthyroidism in children with trisomy 21 can manifest with exophthalmos.
- Severe corneal complications like hydrops and perforation are rare in this population.
Purpose of the Study:
- To report a unique pediatric case of trisomy 21 with hyperthyroidism.
- To describe the development of severe acute hydrops and corneal perforation.
- To investigate the secondary cause of keratoconus in this context.
Main Methods:
- Clinical case presentation and review of patient's medical history.
- Ophthalmological examination to assess corneal status.
- Endocrinological evaluation for hyperthyroidism management.
Main Results:
- A child with trisomy 21 and hyperthyroidism presented with severe acute hydrops.
- Corneal perforation occurred secondary to underlying keratoconus.
- The combination of these conditions in a pediatric patient is exceptionally rare.
Conclusions:
- This case underscores the complex interplay between genetic conditions, endocrine disorders, and ophthalmic complications.
- Early recognition and management of keratoconus and hyperthyroidism are crucial in children with trisomy 21.
- Further research may elucidate the specific mechanisms linking these conditions.
Abstract:
The present report describes the clinical findings in a rare case of a child with trisomy 21 and hyperthyroidism, who developed severe acute hydrops with corneal perforation secondary to underlying keratoconus. There is a known association between trisomy 21 and keratoconus (a conic protrusion of the cornea),1 and children with trisomy 21 are also at increased risk of developing thyroid disease, including thyrotoxicosis with exophthalmos.2(,)3 However, a paediatric case with dual underlying diagnoses of trisomy 21 and hyperthyroidism, who subsequently developed severe hydrops, has not to our knowledge been previously described.
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