In the eye, TGF-β has been shown to be important in scarring in conditions such as proliferative vitreoretinopathy [9], cataract formation [10], corneal opacities [11], and choroidal neovasculaization [12,13] as well as in subconjunctival scarring, a complication of filtration surgery in glaucoma [14,15]. The gene discussed is TGFB1; the disease is glaucoma.