That means they must minimize distortion and maximize light. When you stand over a putt and look to the left or right, it's giving you a more uniform view. This technology also lets you more accurately judge distances and the height of key objects, such as hills, trees, and bunkers. Perhaps even more important than accurately seeing objects from far away is seeing them close-up, particularly when reading contours and breaks on the green. This seems to be the greatest concern golfers have about shades.
Several brands come with interchangeable lenses to fit most lighting and playing situations.
The proper tint also minimizes glare, helping you pick out a white ball in bright-white sand or against intense skies. Glare can bleach your vision for several hours, making it difficult to see details. It can also be a source of eye fatigue, stress, and headaches, and can have long-term negative effects. Finally, make sure that any lenses you buy can filter out at least 99 percent of all ultraviolet rays and are shatter-resistant. Covering the Spectrum Tinted lenses can help you see a white ball on a bright day by wiping out specific colors and enhancing other details.