Brittle cornea syndrome
Other Names for this Disease
- EDS VIB (formerly)
- Ehlers-Danlos syndrome type 6B (formerly)
- Fragilitas oculi with joint hyperextensibility
- Corneal fragility, keratoglobus, blue sclerae, joint hyperextensibility
- Dysgenesis mesodermalis corneae et sclerae
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Your QuestionMy daughter was born in 2000. She has sclerocornea in her right eye and a coloboma in her left eye. She also has red hair and is missing some molars. We are Caucasian. From what I can find brittle cornea syndrome is found in Middle Eastern races. Is it possible she could have this being white?
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Brittle cornea syndrome (BCS) is a type of connective tissue disorder that mainly affects the eyes, joints and skin. Signs and symptoms may include rupture of the cornea after only minor trauma; degeneration of the cornea (keratoconus) or thinning and protrusion of the cornea (keratoglobus); bluish tint in the white part of the eyes (blue sclerae); hypermobile joints; hyperelastic skin; hearing defects; and dental abnormalities. There are 2 types of BCS which are distinguished by the mutated gene that causes the condition. BCS type 1 is caused by mutations in the ZNF469 gene and BCS type 2 is caused by mutations in the PRDM5 gene. BCS is inherited in an autosomal recessive manner.
Last updated: 2/17/2012
Most individuals reported with brittle cornea syndrome (BCS) are from countries in the Middle East and North Africa. A number of affected families are of Tunisian Jewish origin. The condition has also reportedly affected one family from Germany and Ireland, and another family of Norwegian descent.
Last updated: 2/17/2012
- Al-Hussain H, Zeisberger SM, Huber PR, Giunta C, Steinmann B. Brittle cornea syndrome and its delineation from the kyphoscoliotic type of Ehlers–Danlos syndrome (EDS VI): Report on 23 patients and review of the literature. Am J Med Genet A. January 1, 2004; 124A(1):28-34.
- Anne E. Christensen et al. Brittle Cornea Syndrome Associated with a Missense Mutation in the Zinc-Finger 469 Gene. Invest. Ophthalmol. Vis. Sci. January 2010; 51(1):47-52. http://www.iovs.org/content/51/1/47.full. Accessed 2/17/2012.
- Marla J. F. O'Neill. BRITTLE CORNEA SYNDROME 1; BCS1. OMIM. August 12, 2011; http://omim.org/entry/229200. Accessed 2/17/2012.
- Marla J. F. O'Neill. BRITTLE CORNEA SYNDROME 2; BCS2. OMIM. August 17, 2011; http://omim.org/entry/614170. Accessed 2/17/2012.