However, individuals may have: An increased risk of learning disabilities and mild intellectual disability A wide range of mental, emotional and behavioral issues that are usually mild Hearing and vision deficits that may complicate learning Eye conditions A common sign of Noonan syndrome is abnormalities of the eyes and eyelids.
Growth issues: Height and weight should be routinely monitored during childhood and adolescence.
What causes Noonan syndrome? A broad or webbed neck. Am J Med Genet A, 9 Learn More About:.
It is important to be aware of this risk prior to any procedures. In other cases, the condition is caused by a new genetic fault that isn't inherited from either parent. Age-based Noonan syndrome—specific growth charts and treatment guidelines are available.