Blue Block Lenses With Photochromic

2 in 1  -  can be used both indoors (computers/phone) and outsideBlue block lenses to use with computers or phone or TVBlue block lenses filter harmful blue rays from computers/phone and tvHelp reduce eye strain and fatigue when using computers for longPhotochromic - darken on overcast days as well as sunny daysPhotochromic lenses shield your eyes from 100 percent of the sun's harmful UVA and UVB rays

• BLUE BLOCK LENSES WITH PHOTOCHROMIC can be used with computers/phone/TV to reduce eye strain by filtering blue rays from these devices
• With added photochromic, they help shield your eyes from 100 percent of the sun's harmful UVA and UVB rays
• So they can be used both indoors when working on your computer or phone and outside when sunny
• The photochromic lenses will darken on overcast days as well as sunny days
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