There are many options including thinner and lighter lens materials, multicoating for clearer lenses and vision and self tinting lenses.
Lens Tinting Options.
Grey: Grey is one of the most popular tints for sunglasses. Grey tint offers a wide range of darkness intensity. Most sunglasses used for common purposes have a grey tint. This tint gives the wearer protection from sun glare and allows true color of objects to be seen.
Brown: Brown lenses are also good for common purposes and work well in fluctuating light conditions. A brown tint filters some blue light and is a good choice when playing sports where judging distance is significant. Most golfers prefer a brown tint.
G-15: This is a Grey/Green tint combination that blocks 85% of light. The curve of the G-15 lens is very similar to the color sensitivity of the human eye. In other words, this tint helps the lens to emphasize colors our eyes see most easily.
Yellow: Yellow tints block blue light greater than a brown tint. That’s why these lenses are often called “Blur Blockers”. Yellow tints are preferential in conditions that are less than favorable (e.g., on an overcast or hazy day). Consumers who are skiers, airplane pilots and sport shooters may benefit from a yellow lens.
Orange: In a bright environment, the best protection for your eyes is an orange lens. An orange lens improves your vision in bright light substantially and will reduce damage from the sun’s harmful rays..
FL-41: This is a rose-colored tint that is useful for light sensitivity and can help to reduce migraine headaches and other.