"These are by far the cheapest blue-light-blocking glasses that I've found, and they work really well. I was having headaches nearly every day of my last semester of college from working full-time and taking night classes — both of which relied heavily upon screens. These were truly lifesavers, and I've rarely gotten so much use out of $9. I've written a review of them before, and I'm wearing them now." — Mara Leighton
Amazon product lines include several media (books, DVDs, music CDs, videotapes, and software), apparel, baby products, consumer electronics, beauty products, gourmet food, groceries, health and personal-care items, industrial & scientific supplies, kitchen items, jewelry and watches, lawn and garden items, musical instruments, sporting goods, tools, automotive items and toys & games.