Fig. 9.

(a) The fitted normal growth rate (1), normal remodeling rate (2), and maximum remodeling rate (3) showing that scleral growth ceased at younger age compared to normal scleral remodeling. (b) Magnified view of the fitted normal growth rate suggesting that scleral growth impacts the axial development of the tree shrew eye solely at very young ages. (c) The fitted vision-guided stimulus function as defined in (4). At emmetropia (E = 0), the visual stimulus is larger than zero $({\delta }_r^E=0.185)$ suggesting that scleral remodeling continues at a baseline rate when emmetropia is reached. Scleral shortening $({\delta }_r^E<0)$ occurs for E < −1.66 D.