multi-focus reading glasses photosensitive color-changing retro anti-blue light dual-use for the elderly men and women reading glasses presbyopic glasses

transparent tea frame black frame gray frame

0 degrees --- no discoloration [gray] 0 degrees [gray] multi-focus reading glasses +100 [gray] multi-focus reading glasses +150 [gray] multi-focus reading glasses +200 [gray] multi-focus reading glasses +250 [gray] multi-focus reading glasses +300 [gray] multi-focus reading glasses +350 [gray] multi-focus reading glasses +400