CTNND2 and myopia: According to the results of the meta-analysis, rs6885224 in the CTNND2 gene showed no association with myopia [p = 0.222, OR = 1.154, 95% CI (0.917–1.452)], whereas rs634990 in the 15q14 region did display a significant association with myopia [p = 7.270 × 10− 7, OR = 0.817, 95% CI (0.754–0.885)] (Fig. 1, Additional file 1).