Misunderstanding 1: The darker the color, the better.

Many people take it for granted that the darker the color of sunglasses is, the better their ultraviolet (UV) protection function will be. In fact, the function of sunglasses to filter UV rays is only related to the coating applied, and the darker the color is not necessarily better. Because the lenses of sunglasses can delay the time for the optic nerve to transmit signals, which will cause distortion in the perception of speed and make drivers wearing sunglasses make wrong judgments.

Surveys show that when cars and motorcycles are moving at a speed of 80 kilometers per hour, sunglasses with overly dark colors will extend the driver's reaction to situations by 100 milliseconds, thus increasing the braking distance by 2.2 meters.

Misunderstanding 2: Polarized lenses are the most suitable.

Many drivers like to wear polarized glasses. Indeed, polarized glasses can reduce strong light and eliminate glare, making the line of sight natural and soft. However, in fact, polarized glasses are more suitable for environments with large areas of reflection such as fishing and skiing.

But sometimes drivers have to face scenes with relatively dark light such as tunnels, and polarized glasses can easily make people suddenly feel that everything in front of them turns black.

In addition, polarized glasses will make the colors of liquid crystal screens and LED traffic lights fade. Therefore, when choosing polarized glasses, it is best to choose high-quality optical lenses, and when passing through tunnels, it is advisable to take off the glasses in advance and blink more often.

Misunderstanding 3: Sunglasses with overly fancy colors.

For example, pink and purple lenses will change colors and spectra. In fact, it is best to use gray lenses for sunglasses because they will not change the basic color spectrum.

Next are dark green lenses. Brown and yellow lenses have the effect of increasing brightness and are more suitable for environments with fog or dust.

Misunderstanding 4: Not wearing myopic glasses.

Some drivers have mild myopia and usually have no problem driving without wearing myopic glasses. But once they put on sunglasses, problems arise: their eyes will get tired more easily and their vision will decline, just like how vision is affected when driving at night.

Therefore, drivers with mild myopia who usually have no problem driving must have lenses with myopic prescriptions if they want to wear sunglasses.

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