HY USMLE Q #1059 – Ophthalmology

A 6-month-old boy is brought to the physician by his mother for a 2-week history of an ophthalmologic abnormality she’s noticed in certain lighting. Which of the following is most likely to be seen in this patient?

  Activation of proto-oncogene
  Autosomal recessive inheritance
  Development of osteosarcoma
  Development of Paget disease of bone
  Insufficient hexosaminidase-A activity