And when you start using anti-fatigue lenses in your 30s, you are considered to have used the multifocal version in advance, laying the foundation for using progressive multifocal discount eyeglasses online lenses from the age of 40 onwards.

Although the use of this type of lens was not initially highly recommended, when a person experiences symptoms of visual fatigue, it also indicates that they have visual function problems. It is best to improve visual quality and enhance eye fatigue resistance through training and perfecting one's functions. But later on, I realized that training is too time-consuming and requires persistence for adults.

Anti-blue light discount eyeglasses online lenses are a popular concept in recent years, and blue light also plays a positive role in regulating our daily rhythm. Therefore, anti-blue light should not only be chosen for the right person but also not everyone should think so.

So for the general population, if you don't use electronic products such as computers and phones for a long time every day, you don't need to consider anti-blue light lenses.

If you feel that you use a large amount every day and want some protection, then please also purchase discount eyeglasses online lenses that protect specific blue light bands, rather than a one-size-fits protection.

If middle-aged and elderly people have undergone cataract surgery or retinal lesions, they can consider wearing a pair of anti-blue light glasses with high protective ability. For teenagers, it is not recommended to use any anti-blue light products.

Prism is a special eye correction lens designed for people with strabismus. Anti-fog lenses use a film layer and anti-fog activator together to achieve a situation where the temperature difference between indoors and outdoors in winter can cause the lens to turn white. They are suitable for areas with long periods of cold weather and large indoor and outdoor temperature differences.