Fig. 3From: Incidence of strabismus, strabismus surgeries, and other vision conditions in Prader-Willi syndrome: data from the Global Prader-Willi Syndrome RegistryAge at First Strabismus Surgery and Number of Strabismus Surgeries. a: For those who ever had strabismus surgery, age at their first strabismus surgery (N = 139), and b: Number of strabismus surgeries for those who ever had strabismus surgery and reported the number of surgeries (N = 139)Back to article page