Newlite Vision Glasses are for use within an enclosed growing space where you may be using intense lighting. These glasses allow you to work as if you were in normal daylight.
When growing indoors you may be using sodium lighting, these glasses have a blue lense and will correct the red output from the sodium bulbs. This is useful as you can see your plants as if in daylight and therefore you are more likely to notice deficeincies, growth problems, leaf colour etc.
In addition these NewLite Vision Glasses protect your eyes from hazards of the grow room such as high pressure lighting, nutrient splashes, objects and more.