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: California | Premium, polished style A relaxed square shape that's perfect for everyday while delivering a crisp, refined look that's always on point. - Highly-durable, sleek black luster finish - These glasses have a lightweight, high-density hypoallergenic acetate frame - 5-barrel steel hinges and sculpted saddle bridge nose pads