For precision optics and highly polished surfaces, JNJ OptiSmart SmartWipes feature a weave of soft, microscopic polyester fibers, 1/200th the diameter of a human hair. OptiSmart wipes scoop up and trap oil and dirt between the ultra fine fibers to safely clean finger smudges, dirt, oil, and all types of residue from delicate optical surfaces including camera lenses, microscope lenses, glasses, telescopes, gun sights, night vision goggles, plasma screens, LCD screens and monitors, and glass slides. These super soft wipes will not scratch or smudge, and can be used dry or with solvents.