What Is Usher Syndrome?
5. Causes
As with any other inherited condition, Usher syndrome results from certain genes passed on from the parents. As a recessive gene, Usher can only occur when a child inherits the affected genes from both parents. If just one parent carries the gene, the child is likely to develop with normal hearing and vision. It can occur in both female and male children.
The parents that carry the gene are referred to as carriers. Without the symptoms manifesting or known family medical history, it is not likely for a parent to know they are a carrier. When both parents have this mutated gene, they have a one-in-four chance of having their child develop the syndrome, with each birth. They also have a 50% chance their child will also be born a carrier.
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