What are the types of lenses for sunglasses?

Sunglasses are an essential accessory nowadays. If you go back a few thousand years, you will see them as more than just an accessory and you will understand their importance.

The Eskimos created sunglasses to protect their eyes from UV rays. Later, in China, technology was created to tint the lenses and make them darker. Today, there are different types of sunglasses that adapt to your daily life and protect your vision .

At Bassol Optics we explain the characteristics of the types of lenses for sunglasses, so you can choose the one that best suits you. Keep reading!

Types of lenses for sunglasses

There are four types of sunglasses lenses with different technologies to protect your eyes . On the other hand, you can choose them in different colors. Choosing a good combination between these two factors will achieve better eye care.

1. Photochromic crystals

These crystals adapt to the UV rays they receive , darkening (with sunlight) or lightening (with artificial light or indoors).

Their colour can vary between brown, grey or green, making them suitable for sunny and cloudy days and different weather conditions, including rain. If you do outdoor activities, they are an excellent choice. The lenses of the ETNIA BARCELONA POBLENOU HVGR 50 glasses are of this type.

2. Mirror glass

These lenses offer efficient protection. If you practice water sports in dazzling environments, they are a good alternative. They prevent UV rays from reaching the eye . This is possible thanks to the high vacuum process carried out during their manufacture.

If you want coloration on this type of glass, pink and blue shades are recommended. These colors are good for combating reflections from water and snow. However, they are not recommended for driving , as they can change the perception of colors. Check out the Gucci GG1603S 004 53 glasses with mirrored lenses, you will love them!

3. Polarized crystals

These lenses reduce glare . They are highly recommended for driving, especially if there is snow or it has been raining, when the reflections from the asphalt are more intense. This lens eliminates horizontal reflections that reach the eyes through water or shiny surfaces.

Polarized sunglasses are great for outdoor activities such as driving, fishing, snow sports, and water sports. If you want these sunglasses with color, the recommended shades range from blue, amber, and brown. The Serengeti Geary SS526004 sunglasses are a striking model with polarized lenses.

4. Anti-reflective crystals

We close with these anti-reflective lenses that are ideal if you work in an environment with a lot of artificial light . These lenses are similar to polarized ones, the difference is that they prevent the rays reflected in the lenses themselves, which makes vision clearer.

It is common to use these lenses in their transparent version, such as the lenses of the Saint Laurent SL 661 003 50 glasses.

Sunglasses according to the filter

The filter on sunglasses is the part of the lens that is responsible for protecting your eyes from ultraviolet rays. The different types of filters are classified according to their ability to absorb UV radiation , which ranges from 0 to 4, that is, from least to greatest protection.

When choosing glasses, you should ideally opt for a filter that suits your needs and daily activities. Take a look at the characteristics of each type of filter:

1. Category 0 sunscreen

This filter compensates for low protection against sunlight . It is ideal for dimmed luminosity, perfect for cloudy days, indoor use and light sensitivity.

2. Category 1 sunscreen

Provides minimal protection from glare and indirect sunlight. It is ideal for dim light conditions.

3. Category 2 sunscreen

It is used in spaces with medium luminosity. It moderately protects your vision from glare and allows you more visual comfort on sunny days if you want to do outdoor activities.

4. Category 3 sunscreen

Provides significant UV protection . It is the perfect choice for bright days. Wear them for outdoor sports where direct sunlight is received.

5. Category 4 sunscreen

It offers maximum protection . If you are one of those people who enjoys high mountains or aquatic environments, this filter is ideal for you. Keep in mind that it is not the most suitable type of filter for driving due to its extreme darkness.