Usher syndrome is characterized by hearing loss or deafness and progressive vision loss due to retinitis pigmentosa (RP). RP is a condition that affects the retina (the part of the eye that detects light and color). Some people with the condition also have balance problems due to a defect in that part of the inner ear that controls balance. Genetic changes are related to the following types of Usher syndrome. Usher syndrome type I Usher syndrome type II Usher syndrome type III Hearing and vision losses are the major features of Usher syndrome. Type I and type III can also include difficulties with balance due to inner ear problems. The signs and symptoms vary in their severity and age of onset (most are present from birth or shortly thereafter, while others begin later in childhood). All types of Usher syndrome have progressive vision loss due to retinitis pigmentosa (RP), a condition in which deterioration occurs in the retina. The retina is a light-sensitive cell layer in the back of the eye that contains rod cells for night vision and cone cells for seeing color and detail during the day. Night vision loss begins first, and then blind spots develop in the side (peripheral) vision. These spots enlarge and merge into a doughnut shape, producing tunnel vision. Central vision is reduced and blurs but, in some cases, may be very limited but sharp for many years. Cataracts may develop in the teenage years or in adulthood.

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... Usher syndrome is characterized by hearing loss or deafness and progressive vision loss due to retinitis pigmentosa (RP). RP is a condition that affects the retina (the part of the eye that detects light and color). Some people with the condition also have balance problems due to a defect in that part of the inner ear that controls balance.

Genetic changes are related to the following types of Usher syndrome.

  • Usher syndrome type I
  • Usher syndrome type II
  • Usher syndrome type III

Hearing and vision losses are the major features of Usher syndrome. Type I and type III can also include difficulties with balance due to inner ear problems. The signs and symptoms vary in their severity and age of onset (most are present from birth or shortly thereafter, while others begin later in childhood).

All types of Usher syndrome have progressive vision loss due to retinitis pigmentosa (RP), a condition in which deterioration occurs in the retina. The retina is a light-sensitive cell layer in the back of the eye that contains rod cells for night vision and cone cells for seeing color and detail during the day. Night vision loss begins first, and then blind spots develop in the side (peripheral) vision. These spots enlarge and merge into a doughnut shape, producing tunnel vision. Central vision is reduced and blurs but, in some cases, may be very limited but sharp for many years. Cataracts may develop in the teenage years or in adulthood. ...

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Usher syndrome is a genetic disease causing deaf-blindness. It is essentiall ...
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Usher Syndrome Other

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Usher Syndrome
... What is Usher syndrome? Usher syndrome (US) is the most common condition that involves both hearing and vision problems. A syndrome is a disease or disorder that has more than one feature or symptom....
Source: Cleveland Clinic

Usher Syndrome
... Usher syndrome is the most common condition that involves both hearing and vision problems. A syndrome is a disease or disorder that has more than one feature or symptom. The major symptoms of Usher s...
Source: National Institute on Deafness and Other Communication Disorders

   

Usher Syndrome Articles

  • Usher Syndrome
    ... Usher syndrome is the most common condition that involves both hearing and vision problems. A syndrome is a disease or disorder that has more than one feature or symptom. The major symptoms of Usher s...
  • Usher syndrome
    ... Usher syndrome is characterized by hearing loss or deafness and progressive vision loss due to retinitis pigmentosa (RP). RP is a condition that affects the retina (the part of the eye that detects li...
  • Usher Syndrome: New Insights Lead to Earlier Treatment
    ... Children with an inherited hearing and vision disorder known as Usher syndrome can now benefit from better treatment options, thanks to a recent scientific discovery of a method to identify this disor...

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