Tam Ching-man Optometrist at Optical 88 Ltd As a registered optometrist at Optical 88 Ltd in Taikoo Shing, Tam Ching-man says clients not only want to look cool in the heat this summer, they also realise the importance of protecting their eyes from the sun's damaging rays. Styles of sunglasses come and go. This summer's style has moved right into the future. 'Sunglasses lenses are much lighter this season and come in pale colours. The lenses have a special reflective coating. This means they all cut out the sun's ultra-violet rays, depending on the brightness of the sun. 'The glasses are so light that you can see my eyes and I can see yours with them on. The best thing about them, is that people who wear them can leave them on, for instance when they walk into a shopping mall. Because they are so light, there's no need to take them off. With a mercury coating, they are very light in colour, and also in weight, as they only come in plastic frames. Most teens and ladies choose designer labels, such as Gucci. 'This summer's sunglasses shapes are more curved, which gives a cool appearance. And the colours are primarily light greys and browns.'