Photochromic UV Rays Sun Light Blocking Glasses Filter Darkens Transition, Photochromatic

• PHOTOCHROMIC GLASSES: Cut UV 400 (ultraviolet ray), reduce eyestrain and sleep better.
• The original non prescription lenses can be replaced with progressive lenses at any stores.
• Darkens in sun or outdoors
• Lightens indoors

1 x Photochromic UV Rays Sun Light Blocking Glasses Filter Darkens Transition, Photochromatic