The image of an object is formed behind the retina due to a defect in the light rays’ convergence as they pass through the lens. This makes near objects hard to see.
focus
Point where light rays converge to form an image; the brain interprets the retina’s upside-down image as right-side-up.
convex lens
Corrects hyperopia by causing light rays emanating from an object to converge and project an image onto the focus of the retina.