What is the prevalence of Usher Syndrome?
How many people does Usher Syndrome affect? Does it have the same prevalence in men and women? And in the different countries?
Usher Syndrome is a rare genetic disorder characterized by both hearing loss and vision impairment. It is estimated to affect approximately 1 in every 6,000 to 10,000 people worldwide. The condition is classified into three types based on the severity and progression of symptoms. Individuals with Usher Syndrome often experience hearing loss from birth or early childhood, followed by progressive vision loss due to retinitis pigmentosa. While the prevalence of Usher Syndrome is relatively low, it significantly impacts the lives of those affected, requiring specialized care and support.
Usher Syndrome is a rare genetic disorder that affects both hearing and vision. It is estimated to occur in approximately 1 in every 25,000 to 50,000 people worldwide. This makes it one of the leading causes of deaf-blindness. Usher Syndrome is classified into three types: type 1, type 2, and type 3, each with varying degrees of severity and age of onset.
Type 1 is the most severe form, typically causing profound hearing loss from birth and vision loss that starts in childhood. It accounts for about 10-20% of Usher Syndrome cases.
Type 2 is less severe, with moderate to severe hearing loss from birth and vision loss that usually begins in adolescence or early adulthood. It is the most common type, accounting for approximately 80% of cases.
Type 3 is the rarest form, with progressive hearing loss and vision loss that starts in adolescence or adulthood. It accounts for a small percentage of cases.
Usher Syndrome is inherited in an autosomal recessive pattern, meaning that both parents must carry a mutated gene for their child to be affected. Genetic testing and counseling are crucial for individuals with a family history of Usher Syndrome or those experiencing symptoms. Early diagnosis and intervention can help manage the condition and improve quality of life for those affected.
it is a rare disease
Posted Jul 3, 2018 by Usher Initiative Austria
Eigenlijk weinig betrouwbare statistische gegevens
Niet steeds herkend/ onderkend, zeldzaam en ongekend bij het grote publiek
Posted Jun 17, 2021 by Deborah 2500
