The eyes are especially susceptible to the sun because of the transparency of the outer tissues. Long-term exposure can speed up ageing of the macula, the most sensitive part of the retina and can also lead to cataracts. Look for sunglasses that meet the European safety standards. This means they will be of good optical quality with break-resistant lenses, providing high levels of protection against ultraviolet light. One of the key functions of sunglasses is to reduce the amount of sunlight entering the eye. Look for a pair offering a light reduction of up to 80%, that is they will allow in only 20% of the sunlight. The size of the lens - the area shielded - affects light admitted.
- Expensive sometimes means better, but not necessarily. What really counts is the degree to which the lenses filter out harmful UV rays. Look for the CE mark, which proves they conform to the European Community Standard. They should also satisfy British Standard BSEN1836, meaning they will provide high levels of protection against damaging ultraviolet light.
- Do not confuse the shade of the lenses with their ability to filter UV rays. Dark sunglasses may still allow UV rays to enter the eye. Sunglasses are marked with a filter category from 0-4, where 4 is the darkest lens. UV protection has nothing to do with lens colour. The best makes will block 100% of UV-A, UV-B and harmful blue light.
- Polarising lenses will reduce reflective glare from water and land surfaces, making them particularly good at improving vision in bright or hazy driving conditions.
- Anti-reflective coatings eliminate glare.
- Photocromic lenses go darker in the sunlight and are good UV absorbers.
- Impact-resistant lenses are essential for a sporty or active lifestyle as they are made from polycarbonate or toughened glass.
- Wraparound styles further protect the eyes by helping to keep out peripheral glare.
adidas eyewear products are developed to meet the needs of various sports. Their product design engineers work closely with top athletes to develop exceptional products.
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One of the secrets to the world’s finest driving glasses is the Serengeti lens. Serengeti® makes two types of lenses, glass and Polar PhD. Both lenses feature Serengeti’s incredible photochromic technology.
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Bollé has developed particular strength in the sports specialty markets of snow sports, golf, tennis, and marine, as well as eyewear that meets everyday needs and styles.
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Click the logo's for more information about our quality sunglass brands!
To guarantee safety, performance and above all the joy of sports, Rodenstock offers complete sport glasses from a single source and hence the optimum combination of frames and lenses. ProAct® glasses win over demanding athletes through high-quality materials and the latest technologies.
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Rodenstock SunProtect are offered with plain or prescription lenses.
You can choose from a comprehensive range of lens tints including contrast enhancing, high fashion double colour graduated or polarised lenses. |
Protect your child's eyes from the sun!
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There is evidence that too much exposure to the sun's ultraviolet (UV) rays can contribute to the development of cataracts and age-related macular degeneration. Because children tend to spend a lot of time outdoors, it's important to protect your child's eyes in the sun. Make sure that sunglasses have 100% UV protection and carry the British Standard (BS EN 1836:2005) or CE mark. You can also protect your child's eyes by making sure they wear a hat with a brim or sun visor in bright sunlight.
However, scientific studies have shown that children who spend time outdoors are less likely to be short-sighted, and some eye problems are linked to unhealthy lifestyles. So don't stop your child exercising outdoors - just make sure their eyes are properly protected. |
A grey category 3 lens provides excellent and natural perception of surroundings (unlike many category 4 children lenses which can in fact be dangerous as children may not be able to distinguish stop signs while walking or riding their bike.).
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Filter Categories
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Filter Category
0 1 2 3 4 |
Description
Clear or very light Light Tint Medium Tint Dark Tint Very Dark Tint |
Transmittance From
80% 43% 18% 8% 3% |
Transmittance To
100% 80% 43% 18% 8% |
Suitable for Night Driving?
Yes No No No No (or daytime use) |
Ultimate vision, optimum protection, customised fit and maximum durability are the key characteristics of quality performance eyewear. Sport, driving or leisure we have the right performance eyewear tailored for you and some of the styles offered include interchangeable lens systems. There are many different features (including prescription lens availability!) to enhance your vision, and if you need further advice our qualified dispensing opticians are always happy to assist.