Yes, you can. You can choose wrap-around sunglasses and input your prescription for reading. You can also choose regular eyeglasses frame, input your prescription for reading and choose the tinted/gradient tinted color lenses to make you a pair of sunglasses.
Yes. Of course, you can get that sunglasses. Some people called it reading glasses. Personally, i suggest you to buy prescription sunglasses with gradient lenses. That sunglasses can be made according to your vision needs. They can provide you good vision aids. Besides, the gradient lenses design can prevent strong sunlight, but also provide you comfortable and clear vision to read. Hope this can help you.