what is polarized or photochromic? I will not be using Glasses for driving or fishing. I will be in front of comuter or paper work the whole day. Do i need to get polarized or photochromic lenses?

Polarized lenses have filters that block out reflected light. They virtually eliminate the glare caused by reflections from horizontal surfaces, making them ideal for driving or water-activities. Photochromic Lenses are the ideal choice for your everyday eyewear, because they are as good as a clear lens but better! Photochromic Lenses automatically adjust to changing light for everyday convenient protection, everyday visual quality, and everyday visual comfort. Since you are in front of comuter or paper work the whole day,you can simply add a anti-glare coating on a normal lens.