There are several kinds of sunglasses. But in what do they differ?
Sunlight is made up of rays that are visible and invisible to the eye. Each ray is characterized by its wavelength. Sun lenses are intended to protect the eyes from UVA and UVB rays, which increase the risk of cataracts.
This is because sunlight can affect your vision. Exposure to too much visible light can damage your retina and lead to permanent vision loss.
What are the different types of sunglasses?
- Mirror Lenses - These provide a fashionable look while protecting your eyes from sunlight. They exist in different colors, with a gray, brown, or green base.
- Plain tints - plain green, gray and black lenses have the advantage of not distorting the color rendering. There are also plain brown lenses.
How is glare created?
The latter occurs when light reflects off shiny surfaces, such as the sea, a windshield, snow, or sand. This creates parasitic reflections which cause visual discomfort and glare. More specifically, while the light arriving vertically to the eye makes it possible to distinguish contrasts and colours, horizontal light creates parasitic reflections, because it is reflected on a surface.
Get your sunglasses!