The Glasses ecosystem follows a defined value chain from upstream raw‑material and component suppliers to midstream manufacturers and technology integrators, ending with downstream distribution and end‑user consumption. Upstream players provide optical glass, high‑index polymers, and metal alloys for lenses and frames. Midstream actors—OEMs, coating technology firms, and system integrators—assemble these inputs, apply anti‑reflective or photochromic treatments, and, where relevant, embed electronic modules. Downstream channels, including wholesalers, retail chains, and e‑commerce platforms, deliver finished eyewear to private consumers, occupational users, and institutional buyers. Value capture occurs mainly at manufacturing and retail stages through product differentiation and service offerings.