Looking for a scratch-resistant and chemical-free way to clean your glasses, cell phone screens, jewelry and other accessories on the go? Try our Optic Scarf! Looking for a scratch-resistant and chemical-free way to clean your glasses, cell phone screens, jewelry and other accessories on the go? Try our Optic Scarf! It’s made from supersoft microfiber and removes oil, dirt, dust, lint and grime. The convenient silvertone clip attaches to your purse, belt loop or bag.