FIGURE 2.

Distribution of spherical equivalent (SE) or M values (a, b, c), J₀ (d, e, f) and J₄₅ (g, h, i) in the right eye for the three age groups of children. Group 1, ages 5–10 years (a, d, g; n = 7697); Group 2, ages 11–12 years (b, e, h; n = 2926); and Group 3, ages 13–16 years (c, f, i; n = 3719). Refraction represented in dioptres