This “Lens for Life” is ideal for anyone, even if you have perfect vision. BluTech Lenses use a patented formula to filter blue light. The BluTech protection is infused into the lenses. It is not a tint or a coating and will not wear off or fade over time. BluTech lenses improve sleep patterns, reduce eye strain and fatigue, and protect your long-term vision and health. No other lens can support that claim.