Causes, Effects, and Management of Usher Syndrome

3. Type 3 Usher Syndrome

Of each type, the third is the least severe. Hearing loss intype 3 Usher syndrome begins during childhood or the early teenage years, rather than being present at birth. Vision loss can vary greatly in both severity and age of onset. A person with type 3 Usher syndrome often begins to notice night vision problems in their teens. Severe vision loss by midlife is common. Balance issues are rare during childhood but become more prevalent in later years.