What part of the eye is affected by Stickler syndrome?
Stickler syndrome often affects the connective tissue of the eye, especially in the interior of the eyeball (vitreous humor), the specialized tissue that serves as a buffer or cushion for bones at joints (cartilage) and the ends of the bones that make up the joints of the body (epiphysis).
What does Stickler syndrome affect?
It usually affects the ability to hear high frequencies. Bone and joint abnormalities. Children who have Stickler syndrome often have overly flexible joints and are more likely to develop abnormal curvatures of the spine, such as scoliosis. Osteoarthritis can begin in adolescence.
How is sticklers syndrome diagnosed?
Stickler syndrome is diagnosed with a physical examination, although there is currently no consensus as to the diagnostic criteria. The diagnosis can be confirmed by testing for mutations within genes called COL2A1, COL11A1 and COL11A2 for cases of autosomal dominant types of Stickler syndrome.
What are the different types of Stickler syndrome?
There are five types of Stickler syndrome: Stickler syndrome type I, Stickler syndrome type II, Stickler syndrome type III, Stickler syndrome type IV, and Stickler syndrome type V. Individuals with Stickler syndrome type I tend to have milder hearing loss, nearsightedness, and type 1 membranous vitreous anomaly.
What gene causes Stickler syndrome?
Stickler syndrome is caused by genetic changes ( mutations or pathogenic variants) in one of six genes : COL2A1, COL11A1, COL11A2, COL9A1, COL9A2, or COL9A3. The syndrome can be inherited in an autosomal dominant or autosomal recessive manner.
Can Stickler syndrome be detected before birth?
Molecular genetic testing can be used to diagnose Stickler syndrome. A clinical geneticist can discuss this in detail with you and arrange for it, if appropriate. Your doctor may suggest it to confirm a suspected diagnosis or for prenatal diagnosis.
Is Stickler syndrome life threatening?
While the symptoms of Stickler syndrome are generally not life threatening, your child may be at a higher risk for retinal detachment, a condition that can cause blindness if left untreated.
Who is most likely to get Stickler?
Doctors diagnose Stickler syndrome in roughly 1 out of 7,500-9,000 newborns. It affects males and females equally.
How is Stickler syndrome treated?
Treatment for Stickler syndrome is aimed at treating the specific symptoms each person has. For some, this may involve surgeries to correct cleft palate or retinal detachment. Other treatments may include hearing aids for hearing loss or medications for joint pain.
Is Stickler syndrome fatal?
What causes Treacher Collins syndrome?
Treacher Collins syndrome (TCS) is caused by changes ( mutations ) in any of several genes : TCOF1 (in over 80% of cases), POLR1C, or POLR1D. In a few cases, the genetic cause of the condition is unknown. These genes appear to play important roles in the early development of bones and other tissues of the face.