NEAR INVISIBLE BIFOCAL LINE : Everyone will wear bifocal sunglasses or magnifier sunglasses eventually. But should every one notice those bifocal lines? The magnified reading area on our lenses are injection molded, so you can’t feel the line on the front of the lenses. The lens is smooth, like nothing is there & nearly invisible on the front of the lens. Bifocal sunglasses for men readers & women should look modern and clean. You DON'T need a prescription to purchase cheater glasses. However, some International orders may take three to six weeks for delivery. Your Customs Office in your country may decide to inspect your package, and unfortunately we don’t have any control over that. Sorry, USPS tracking information is NOT available when a package leaves United States borders. Customer w.