Top Image:
Wearing glasses with the correct prescription can help focus light on the center of the retina, but the shape of the focal plane doesn't change. As a result, the focus extends beyond the retina in the peripheral areas, serving as a stimulus for the retina to elongate (peripheral hyperopic defocus ).
Bottom Image:
When the retina stretches backward, the center focus of the glasses will no longer align correctly, necessitating stronger lenses. The cycle then repeats, leading to continued progression of myopia.
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