Eye Wear

To help choose safety eyewear best suited to your needs the following information may help
type of lens
Clear suitable for general use
anti glare suitable for high glare situations such as finished concrete slabs in bright sunlight
Yellow suitable for moving from light to dark
type of hazard
Mechanical debris dust and molten metal
Chemical Fumes Gases or Liquid Splash
Radiation Heat(infrared) Ultraviolet Light or Glare
Laser Light from ultra violet to infra red

Optical Standard 
Class 1 continuous work
Class 2 intermittent work
Class 3 Occassional work n ot to be worn continuously