I have a vestibular system that does not work. Theycannot feel changes in speed or direction and as their vision decreases,their visual balance system becomes less reliable. Persons with Type II have a normal vestibular system but their visualsystem also becomes less reliable as their vision decreases. As more information on Type III becomes available, a more clear pictureof vestibular function will emerge. Usher Syndrome is a genetic condition.
Genes always come in pairs.
One of each pair comes fromour mother and the other from our father. In turn, we pass only one genefrom each pair to each of our children. Which gene we receive from a parentis determined randomly. Just as when we flip a coin, whether it comes upheads or tails is a random event. When the genes from our mother and father come together in the fertilizedegg cell, they arrange themselves in pairs.