Fortunately, as a result of publicity regarding climate change, more and more people are becoming aware of the dangers of exposure to U.V. Just as U.V. rays can burn your skin, they can promote cataract growth in your eyes - an endemic problem for the indigenous peoples of the Indian and African continents. Good quality sunglasses need not be expensive, from about £53, complete with prescription lenses. It is vital to have lenses which inhibit U.V. up to 400nm. Then you can be safe and stylish