P265 CEEFAX 265 Tue 8 Jul 21:05/11 3/4 U PUTTINGOTHERSINTHESHADF Some react equally to artificial light as they do to ultra violet; others are less efficient when worn behind a car windscreen. Ii is best to ask an optician's advice if investing in a really good pair of sunglasses. If you don't see any frames you like you can have your own frames converted. Once you have chosen your sunglasses, prevent scratching by keeping them in a case when not in use.P265 CEEFAX 265 Tue 8 Jul 21:07/18 1/4 V PUTTINGOTHERSINTHESHADE khen choosing sunglasses you should not only think about the shape but your visual needs. The cost of sunglasses varies enormously. A cheap pair of glasses won't contain good lenses as they are impossible to manufacture cheaply. A cheap lens cannot control glare and can interfere with true vision. To tfst the quality of a lens hold the glasses out at arms' length. Look through each lens singly at any nearby vertical object such as a door frame.P265 CEEFAX 265 Tue 8 Jul 21:01/00 2'4 PUTTINGOTHERSINTHESHADE Rotatf the lens by twisting your wrist to and fro in a small sAmi-circle. If the lens is good it won'p distort. A ldns in quality plastic is both lightfr and ldss likely to shatter than glass BUT it scratches morf easily. A polarised lens is a plastic one with a cord that acts as a kind of Vendtian blind to absorb horizontal glare. O.d of the latfst innovations for glass ldnses arf the photochromic lenses that darken in sunlight —ttomatically.P265 CEEFAX 265 Tue 8 Jul 21:06/20 4/4 PUTTINGOTHERSINTHESHADE Forget the glamour image of wearing sunglasses on your head, as you will find that they "go wide" and won't fit snugly on your nose. It is not advisable for children to wear sunglasses. Not that it's harmful, but young eyes should be quick to adapt to changing conditions without help. If, however a child complains of discomfort from glare, get professional advice.