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Stickler Syndrome

What is Stickler Syndrome?

Stickler syndrome is a progressive genetic disorder of connective tissue throughout out the body. The condition was first described by Dr. Gunnar B. Stickler in 1965 and was originally called "Hereditary Progressive Arthro-ophthalmopathy" because of its tendency to affect the joints and the eyes.

What are the features of Stickler Syndrome?

Stickler Syndrome is associated with problems of vision (severe nearsightedness and retinal detachments), hearing (hearing loss and frequent ear infections), craniofacial abnormalities (small noses and chins, cleft palates) musculoskeletal abnormalities (arthritis and loose joints) as well as other problems caused by abnormal collagen [See figure 1].

What causes Stickler Syndrome?

Stickler Syndrome is usually caused by a mutation in the Type II pro-collagen (COL2A1) gene, although several other mutations have also been identified. These mutations cause abnormalities in the formation of connective tissues throughout the body and give rise to the features of Stickler Syndrome.

How is Stickler Syndrome Inherited?

Stickler syndrome is usually inherited in an autosomal dominant pattern(50% chance of passing that mutation on to each child). Less commonly, Stickler syndrome can occur sporadically, which means that there is no family history of the disease, and that the individual is the first one in the family to have the mutation. Genetic counseling is recommended, and children of affected parents should be evaluated by an eye doctor (ophthalmologist) in early childhood.

Fig. 1 Retinal detachment in child with Stickler syndrome.

How does Stickler Syndrome affect vision?

Extreme myopia (nearsightedness) is one of the earliest and most characteristic signs of Stickler Syndrome. The associated thin peripheral retina can lead to retinal breaks, holes, detachment and scarring which can permanently reduce vision. Cataracts (clouding of the lens in the eye) can reduce vision, and typically occur at a younger age in individuals with Stickler Syndrome.

How is Stickler Syndrome diagnosed?

A point system is used to diagnose Stickler syndrome based on the number of oral-facial, ocular, auditory and skeletal abnormalities detected. In addition, points are given for family history or the presence of a mutation in one of the genes known to be associated with Stickler Syndrome. There are 12 points possible on 9 criteria. Diagnosis requires 5 points minimum and presence of cleft palate, ocular abnormalities or high frequency hearing loss.

How is Stickler Syndrome treated?

Early, regular, long term evaluation is essential. Glasses and/or contact lenses are utilized for myopia. Laser may be applied to areas of thin retina to reduce the risk of detachment. Additional retina surgery may be necessary to repair detachment. Significant cataract may require lens removal.

Where is there more information about Stickler Syndrome?

Stickler Involved People
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