Identification and prevention of myopia

A method of preventing myopia, the method comprising:

• identifying a child prone to myopia, likely to become myopic, or having a predisposition for myopia, before the child becomes myopic;
• treating a retina of the child with ocular photo-bio-stimulation light;
• and
• casting or imparting one or more of, a black spot or area, a dark grey spot or area, or a dark color toned spot or area, over an entire fovea and part or all of a macula of the retina of the child, wherein the one or more of, the black spot or area, the dark grey spot or area, or the dark color toned spot or area, blocks, reduces, attenuates, eliminates, or filters, the ocular photo-bio-stimulation light, to operatively protect the entire fovea and the part or all of the macula of the retina of the child from the ocular photo-bio-stimulation light, and wherein a peripheral retina of the retina of the child receives a higher level of the ocular photo-bio-stimulation light than a central retina of the retina of the child.