Sun Glasses

Ultra-violet made easy.

Ultra violet, or UV, rays are wavelengths of light that are not visible to the human eye. There are 3 kinds of UV rays: UVA, UVB, and UVC.

UVA induces tanning. UVB causes sunburn, blistering and potentially, skin cancer. UVC is normally filtered by the earth’s atmosphere so it shouldn't cause any problems for people.

Most people already know that UV rays cause sunburn and are pretty good about protecting themselves. People are not so careful about protecting their eyes from harmful UV rays. Check before you buy that sunglasses give 100% protection against the most harmful UVB rays and at least 99% protection from UVA rays.

The Blue problem.

It turns out that the shorter blue light waves causes the most visibility problems. The shorter blue light waves can’t be properly focused inside your eye. At times they focus in the front of your retina, causing "blue blur". This blue blur causes eyestrain and fatigue.

Blue light waves are also responsible for a problem known as "veiling glare". Veiling glare occurs when blue light scatters off dust and moisture particles in the atmosphere. It’s most common in fog, rain, snow and overcast conditions. Lenses that selectively filter out most of the blue light waves have the effect of reducing glare, increasing contrast and giving the wearer a clearer sharper image. It is important not to block all the blue light, as this would distort the colours you see through the lens. You need some blue light as well as green, yellow and red light to keep the colours balanced and natural looking.

You can have sunglasses made up with your prescription which is much more convenient than Clip-on's.

Should you require any further information please do not hesitate to contact us, using our online enquiry form.