In the professional B2B market, 'X-ray glasses' typically refer to Lead Glass Radiation Protection Eyewear used in medical and industrial fields. They are essential for radiologists, interventional cardiologists, and non-destructive testing (NDT) technicians. These glasses are designed to protect the human eye from ionizing radiation during fluoroscopy, CT scans, and X-ray procedures. It is critical to distinguish these from 'toy' or 'novelty' gadgets, as professional-grade eyewear must feature high-index lead glass to ensure optical clarity while maintaining safety.