Tom Ford Blue Block Square Optical is a shiny acetate square frame designed for everyday wear and digital eye comfort. It features blue‑block lenses that reduce screen glare and can accept prescription lenses. Key attributes: Black | Acetate | Blue block (blue light filter) lenses | Ready-to-wear lenses or removable for prescription | Removable demo lenses for prescription fitting | Full-rim construction | Lightweight acetate build | Square frame shape | Shiny acetate finish | Shiny metal T logo on temples | Smooth, sinuous surfaces | Dimensions & fit: 52 mm lens width | 18 mm bridge width | 140 mm temple length | Size: 52-18-140 | Composition & care: Acetate | Clean lenses with a microfiber cloth; avoid harsh chemicals and heat. Store in protective case and have adjustments done by an eyecare professional.