Spring has come and it’s time for you to take out all your sunglasses collection. It’s time to protect your eyes from the harmful ultraviolet (UV) rays.
Make sure that your sunglasses is with UV Coating. Polycarbonate lenses offer 99 percent UV protection. If on the labels written “UV protection up to 400nm,” it means 100 percent UV absorption. Never buy the one only saying “block UV” without stating how much.
Alhtough the UV coating itself is colorless, to add a fashionable look, you can choose the color below with some purposes:
- Green: offers some color contrast with little or no color distortion (best for multi-use)
- Gray: flat color offers no contrast, along with no color distortion
- Brown: offers very high contrast and depth perception, but it distorts color-optimum for object definition
- Yellow: optimum for object definition, but creates a harsh visible light
- Vermillion: best on water to define water from other objects, but has the worst color distortion
- Blue: best in snow because it counteracts the white, but distorts other colors
- Red and Pinks: best for computer eyestrain, but causes color distortion
