The participants’ refractive status ranged from myopia of −20.25 D to hyperopia of +9.5 D, and the median [interquartile range (IQR)] spherical equivalent was −0.250 (−1.375, 0.125) D. The median insulin levels [interquartile range (IQR)] were 56.340 (39.480, 81.720) pmol/L for males and 64.380 (46.740, 89.880) pmol/L for females. The gene discussed is INS; the disease is hyperopia.