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What are the different benefits of Sunglass lens' colors?
For example: Red lenses helps with vision in low light areas and yellow lenses help with depth perception. But what about blue lenses and green and do black/grey lenses do anything? I know this is a weird topic, but I hope someone knows.
Red-Orange tends to reduce glare and haze from the near ultraviolet part of the visual light spectrum. This tends to reduce glare on hazy days. Yellow has been used for years by sportsmen as a shooting tint. It tends to increase contrast. I really know of no great advantages to blue or green tints. It is more of a personal choice. I have had some patients tell me that the blue tint "relaxes" their eyes. Not sure what that means but I have heard this. My favorite tint though is simply a true gray with an ultraviolet filter. The UV filter protects the eyes from damage from ultraviolet light while the true gray acts as a neutral density filter. What that means is that true gray does not alter the color of what the individual is viewing. Reds will look less brilliant but still look red. Likewise greens will look less brilliant but still look the same green. A green tint will decrease brightness but will make things look more green. Likewise a red orange tint will make things look more red orange. That's why some refer to gray tints as "true color" tints. Be aware though that as a gray tint is worn outdoors and exposed to the sun, it is common for the tint over time to begin shifting into a more red color. By retinting it with a little green, though, you can return the tint to a gray again. Hope this helped.
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