1. The problem statement, all variables and given/known data The problem and its solution are attached as (the leftmost and middle) jpg files. (Given that the problem depends on the drawing, I think it's more convenient for the reader to view the text in the image as well.) 2. Relevant equations N/A 3. The attempt at a solution Editing the lens in the solution image, I obtain diverging_lens_made_by_editing.png. Basically, I am having trouble understanding why, for number 2, a lens that is convex on one side and concave on the other side works for solving myopia. Is it because, it is only expected for the light that the person is viewing to be diverged? Would the lens I made from editing work as well? Any input would be greatly appreciated!