1. What are polarized sunglasses?

Polarized sunglasses have lenses that contain polarized filters. These filters reduce glare reflected off shiny surfaces such as water. Fishermen especially like polarized lenses because they make it easier to see the fish in the water.

2. What is UV Protection?

Protecting your eyes from long-term exposure to Ultraviolet (UV) radiation in sunlight is an important preventative measure in avoiding eye disease.
Ultraviolet radiation is part of the natural radiation found in the invisible light spectrum. There are 3 ranges UV is divided into, UV-A, UV-B and UV-C. Prolonged exposure to UV-A and B rays may increase the threat of significant eye damage. Problems with the eyes can range from temporary discomfort to long-term vision problems like cataracts.
To protect your eyes it is recommended that you wear sunglasses that block 99 or 100 percent of UV light. Plastic and glass lenses both absorb some UV light, but this can be improved with lens material that has been treated with specific chemicals during the manufacturing process or by applying special coatings to the lenses. Look for those lenses that block 99 to 100 percent of ultraviolet rays. All sunglasses at sunglassesuk.com do just that.

3. Is lens colour important?

The colour of you lenses may have an added benefit in how you see. These are just some facts to keep in mind when you are considering lens colour. Seeing through grey or a green-tinted lens shows the least amount of colour distortion and is perfect for basic all-purpose use.

a. An amber or orange lens will offer a brighter view in cloudy, hazy or foggy weather because the colour helps to block blue light.
b. Gold and yellow lenses add contrast.
c. The colour brown is excellent for enhancing depth perception.
d. A view through rose coloured lenses creates high contrast and great image resolution in low light.
These are all examples of how the colour of your lenses play a part in helping you see better.

4. What is a gradient or double gradient lens?

Gradient lenses are darker on the top and lighter at the bottom. Double gradient lenses are dark at the top, light in the middle and dark at the bottom.

5. What is the difference between a glass and plastic lens?

A glass lens is harder to scratch, and offers better clarity. A plastic lens is lighter in weight, and more impact-resistant