Lenses are an indispensable part when talking about the structure of glasses. Let’s find out how many types of sunglasses are available today, and which one should be purchased to suit your individual needs!   

What are lenses? What’s the use?

Lenses and frames are two important parts of glasses, in which the lens part is responsible for protecting the eyes and deciding what type of glasses it is, such as: prescription glasses, sunglasses (sunglasses). , fashion glasses, 3D glasses, safety glasses,….

Types of current lenses

Currently, there are many types of lenses launched by reputable manufacturers on the market:

Before choosing what kind of lenses with lenses, you should ask an ophthalmologist to better advise on the type of lens that is right for your eye condition!

Polarized lenses

This type of lens is often used by fishermen or boaters in the past, because it is  anti-glare  and  prevents light from reflecting  from the sea surface.

Mirror-coated lenses

Mirrored lenses reduce the amount of light entering the eyes, which is very suitable for people with sensitive eyes and those who spend a lot of time outdoors in strong sunlight. In particular, this type of lens will not make the opposite person see through the eyes of the person wearing glasses.

Gradient lenses

Gradient is a tinted lens that has a dark top part, gradually moving down to a lighter tone.

This type of lens is suitable for those who drive often, because the upper part of the glasses can protect the user from sunlight, while the lower part still ensures a clearer view of the dashboard. steering.

Photochromic lenses or transitions lenses

Discolored lenses tend to turn dark when outdoors in the sun, and back to transparent when indoors or in the shade. This is a lens that is also very popular today, because it allows users to own glasses that have both a strange fashion sense and still ensure the protection of eyes from UV rays.

Multifocal lenses, commonly called multifocal sunglasses

Multifocal lenses are lenses that do not have a dividing line between different lens strengths, but still allow the wearer to have clear vision for all distances.

In other words, multifocal lenses allow users to have a seamless line-of-sight across the lenses, regardless of distance, with a more natural depth of focus than previous bifocals or trifocals. 

This type of lens is suitable for people over 40 years old or those who are in the period of aging eyes.

Popular technologies on lenses

Additional technologies on lenses will promote the effect of wearing glasses effectively and meet the needs of each person:

Reflective coating technology (anti-glare)

Thanks to this coating, your eyes will limit eye strain from reflected light or light from light-emitting devices. At the same time, it also becomes the perfect protective layer to avoid factors that cause scratches or stains on the lenses.  

The anti-glare coating also provides good support for your vision, image sharpness as well as reduces the amount of UV rays reflected from behind the lenses to optimize the ability to protect your eyes.