joe now shifts his focus from the tree to the squirrel. to do this, the ciliary muscles in his eyes must have the curvature of the lens, resulting in a(n) focal length for the cornea-lens system. note that curvature is different from radius of curvature. joe now shifts his focus from the tree to the squirrel. to do this, the ciliary muscles in his eyes must have the curvature of the lens, resulting in a(n) focal length for the cornea-lens system. note that curvature is different from radius of curvature. increased / increased increased / decreased decreased / increased decreased / decreased
