Figure 3.

(A–F) Spherical-equivalent refractive corrections for the right (open symbols) and left eyes (filled symbols) of individual monkeys reared with either 1.0 (top row) or 1.3 log unit neutral density filters in front of both eyes (bottom row) plotted as a function of age. The thin lines represent the data for the right eyes of the normal control monkeys. The first symbol in each plot denotes the onset of the filter-rearing period; the filters were worn continuously throughout the observation period.