There was no statistically significant difference in prevalence of other eye conditions by growth hormone use (hyperopia: Ever on GH: 23.7 %, Never on GH: 27.1 % (p = 0.51); myopia: Ever on GH: 39.2 % Never on GH: 49.4 % (p = 0.07); astigmatism: Ever on GH: 23.7 %, Never on GH: 29.4 % (p = 0.26); and amblyopia: Ever on GH: 15.8 %, Never on GH: 17.6 % (p = 0.66)). This evidence concerns the gene GH1 and amblyopia.