helena Photochromic Reading Glasses Women men round Transition Presbyopic Glasses Bifocal Reader Sunglasses

helena Photochromic Reading Glasses Women men round Transition Presbyopic Glasses Bifocal Reader Sunglasses

Bifocal Reading Glasses: Regular Clear Lens On Top with Reading At The Bottom Perfect For Outdoor Reading And Distance Viewing. No Longer Will You Need To Carry Multiple Pairs Of Glasse UV400 rated sunglasses are essential for filtering out sunlight reflected glare and protecting your eyes against long term UV damage when you go out. Photochromic glasses Lenses are clear when indoors or at night and automatically darken to a sunglasses tint when exposed to UV sunlight. Lenses will begin to clear as soon as they are away from UV sunlight, and will be noticeably lighter and mostly clear within a few minutes. Note: This is not sunglasses! ! The photochromic lens changes according to the intensity of ultraviolet rays. The stronger the ultraviolet rays, the deeper the discoloration, and the weaker the ultraviolet rays, the lighter the discoloration. (We will check carefully before leaving the warehouse) [Notes]It will take some time to adapt after you wearing the Bifocal reading glasses.We suggest you at least try the glasses on for a week, then if there's anything need our assistance, please contact bifocal reading glasses, the upper optical area of the lens is used for the far view, and the lower optical area is used for near view.