Although our Prescription sport goggles is designed to offer the best possible protection during certain sporting activities, there is always the possibility that the wearer may sustain an eye, face, or other injury due to impact or because of the nature of the athletic activity. If the frame incurs an severe impact it must be replaced.If the frame experiences severe impact, it must be replaced. Improper wear, neglect, or misuse of the eyewear may decrease its protective capabilities and may result in permanent eye, face, head, or other injuries. Optic One doesn't claim that the prescription sports eyewear is unbreakable or eliminates the possibility of injury."