Mutations in the COL11A1 gene are also associated with the autosomal dominant type II Stickler syndrome, which features a variable phenotype, including visual disturbances such as type 2 vitreous anomaly, childhood-onset myopia, glaucoma, cataracts and retinal detachment (Snead et al., 1996; Richards et al., 2013). Here, COL11A1 is linked to glaucoma.