A common misconception is that wearing glasses correction weakens the eyes and makes you need stronger glasses. As far as we know, in adults, wearing glasses does not affect the development of future glasses prescription. You may become accustomed to and like the sharper image, noticing the contrast with the blurrier uncorrected image.
The distance prescription is a result of a mismatch between the length of the eye and the focusing power of the cornea and lens. There is no known Lamarkian feedback mechanism to change those structures in an adult. The only way to change those structures is by surgery, like Lasik.
However, there are studies underway to see if such a feedback mechanism exists in the developing eye.
Change in reading prescription happens at the same rate whether you wear glasses or not. Adults we see in Guatemala, who have never had glasses, need the same reading strength at the same age as people here.