A 6-year-old boy presents to your office because his mother has noted a blue discoloration to the sclera.

All of the following can cause such discoloration and should be considered in the differential diagnosis in this case EXCEPT:

a. Hurler’s syndrome b. congenital staphyloma c. Turner’s syndrome d.  Ehlers-Danlos e. osteogenesis imperfecta

For answers to the above, click here on or after May 2, 2006.