title: Optical flaws in impact-resistant lenses.
mesh_terms: D005139:Eyeglasses / Q000592:standards*; D005898:Glass; D006801:Humans; D007474:Ion Exchange; D007909:Lenses / Q000592:standards*; D055095:Optics and Photonics; D010969:Plastics; D011482:Protective Devices
chemical_list: D010969:Plastics