Today, most of the sunglasses are manufactured for protecting our eyes from the sunrays. The sunglasses often have labels that ensure protection from different types of natural radiation and ultraviolet radiations. You should be aware of what type of light you need to protect your eyes from and what kind of light is not harmful. Some of the suggested types of sunglasses are listed below.
Sunglasses Blocking 99 percent of UV rays
Make sure to buy sunglasses that have the UV protection feature that blocks 99 to 100 percent of UV light. The long-term exposure to UV rays from sunlight causes eye damage and cataracts and sometimes cancer as well. The UVB radiation is more harmful to the skin and eyes compared to the UVA radiation. The glass and plastic lenses absorbs a minimal amount of ultra-violet light, but the UV absorption rates can be improved with the adding of chemicals to the lens materials when manufactured or applying special coatings on the lenses.
The polarized lenses avoid reflected glare i.e. the sunlight that reflects off the smooth surfaces such as car windows, water, pavement or chromed surfaces. These lenses are highly useful when fishing or driving. The polarized lenses have nothing to do with the UV light absorption. But, today, various polarized lenses consist of UV-blocking substances as well.
The photochromic lenses
This type of lenses offers a great feature i.e. the lens gets dark when exposed to bright light automatically and becomes lighter in the case of low light. The darkening of the lens takes place in 30 seconds whereas the lightening of the lens takes at least 5 minutes. The photochromic lenses are available in gradient or uniform tint form. Even though photochromic lenses are great UV-absorbent glasses, it will take time for them to adjust to various lighting conditions.
Wrap around style of sunglasses
These types of glasses are shaped in such a way that they can keep the light from shining into your eyes or around…