The ideal colors for the cheapest eyeglasses online lenses are gray and gray-green, with gray being the best as it can evenly reduce the chromaticity of various colors in light and preserve the original color of the image.

Blue can make objects appear more blue, which can be glaring in sunlight. Yellowish-brown lenses can block blue and make people feel comfortable. Dark lens color does not necessarily mean a good UV filtering effect.

Colorless lenses, such as common myopia discount prescription glasses lenses, can also block ultraviolet rays. The depth of the lenses only affects the brightness when looking at things. In urban areas, it is not necessary to wear too deep glasses or reflectors. If you are going to the beach, hiking, or skiing, you need to wear dark-colored glasses.

The quality of sunglasses near me now has a significant impact on the protective effect. How to distinguish the quality of the eyes? Observe the lenses for scratches, impurities, bubbles, and stripes, and check if the outer packaging of the sunglasses is intact.

Observe whether the lens is flat, hold the two corners of the sunglasses with your hand towards the fluorescent lamp, and observe the reflection of the mirror surface. If you find that the reflection of the fluorescent lamp on the mirror surface appears wavy or twisted, it proves that the lens is not flat, and such a mirror surface will damage vision.

Put it on and walk around, try to see if you feel dizzy or have a headache. The color should be based on the appearance of the surrounding environment without distortion when worn, and the edges of the object should be visible.

The most important thing is to be able to effectively identify signal lights of different colors, which is particularly important for drivers. Qualified sunglasses should be able to accurately distinguish between red, yellow, green, and blue colors.