Life Is Better With The World's Best Color Blind Glasses! Deutan is the most common form of red-green color blindness and results in slightly more issues with greens than reds. Our Outdoor Deutan lens boosts greens and normalizes the red to green ratio. All EnChroma lenses feature 100% UV Protection, anti-scratch and anti-reflective coatings, and are made from optical grade lens materials. About the Frame: Tilden | Versatility and Value Fit for adventure or everyday wear, Tilden's iconic design, clean lines, and overall lightness make it our most popular frame. - Fits a wide range of face shapes - Made of strong polycarbonate material - Features rubberized temples for firm fit - Saddle nose-bridge is rubberized for comfort