TGFB2 and myopia: In TGF-β2, combining the analyses of allelic and haplotype study, we could indicate that the A allele of TGF-β2 (rs7550232) had a protective effect against high myopia, and its effect would increase when the subjects had the A allele in TGF-β2 (rs991967; Ht2 [A/A] of TGF-β2; Table 3).